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Finding the Fourth Proportional to 628,676,644.60, 943,014,966.90 and 322,566,628.60

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Solution

The fourth proportional to 628,676,644.60, 943,014,966.90 and 322,566,628.60 is: 483,849,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,676,644.60 : 943,014,966.90 = 322,566,628.60 : x
  2. Step 2: Convert to fraction form
    628,676,644.60/943,014,966.90 = 322,566,628.60/x
  3. Step 3: Cross multiply
    628,676,644.60x = 943,014,966.90 × 322,566,628.60
  4. Step 4: Simplify right side
    628,676,644.60x = 304,185,158,592,273,600
  5. Step 5: Solve for x
    x = 304,185,158,592,273,600/628,676,644.60
  6. Step 6: Final answer
    x = 483,849,942.90

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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.