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Finding the Fourth Proportional to 629,856,644.40, 944,784,966.60 and 572,461,016.40

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Solution

The fourth proportional to 629,856,644.40, 944,784,966.60 and 572,461,016.40 is: 858,691,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,644.40 : 944,784,966.60 = 572,461,016.40 : x
  2. Step 2: Convert to fraction form
    629,856,644.40/944,784,966.60 = 572,461,016.40/x
  3. Step 3: Cross multiply
    629,856,644.40x = 944,784,966.60 × 572,461,016.40
  4. Step 4: Simplify right side
    629,856,644.40x = 540,852,562,259,276,032
  5. Step 5: Solve for x
    x = 540,852,562,259,276,032/629,856,644.40
  6. Step 6: Final answer
    x = 858,691,524.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.