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Finding the Fourth Proportional to 629,857,230.40, 944,785,845.60 and 591,561,985.60

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Solution

The fourth proportional to 629,857,230.40, 944,785,845.60 and 591,561,985.60 is: 887,342,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,230.40 : 944,785,845.60 = 591,561,985.60 : x
  2. Step 2: Convert to fraction form
    629,857,230.40/944,785,845.60 = 591,561,985.60/x
  3. Step 3: Cross multiply
    629,857,230.40x = 944,785,845.60 × 591,561,985.60
  4. Step 4: Simplify right side
    629,857,230.40x = 558,899,390,789,911,040
  5. Step 5: Solve for x
    x = 558,899,390,789,911,040/629,857,230.40
  6. Step 6: Final answer
    x = 887,342,978.40

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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.