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Finding the Fourth Proportional to 474,689,446.62, 712,006,591.86 and 142,689,287.22

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Solution

The fourth proportional to 474,689,446.62, 712,006,591.86 and 142,689,287.22 is: 214,025,641.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,689,446.62 : 712,006,591.86 = 142,689,287.22 : x
  2. Step 2: Convert to fraction form
    474,689,446.62/712,006,591.86 = 142,689,287.22/x
  3. Step 3: Cross multiply
    474,689,446.62x = 712,006,591.86 × 142,689,287.22
  4. Step 4: Simplify right side
    474,689,446.62x = 101,595,713,088,444,848
  5. Step 5: Solve for x
    x = 101,595,713,088,444,848/474,689,446.62
  6. Step 6: Final answer
    x = 214,025,641.00

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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.