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Finding the Fourth Proportional to 618,192,706.20, 927,289,059.30 and 613,888,034.10

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Solution

The fourth proportional to 618,192,706.20, 927,289,059.30 and 613,888,034.10 is: 920,832,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,192,706.20 : 927,289,059.30 = 613,888,034.10 : x
  2. Step 2: Convert to fraction form
    618,192,706.20/927,289,059.30 = 613,888,034.10/x
  3. Step 3: Cross multiply
    618,192,706.20x = 927,289,059.30 × 613,888,034.10
  4. Step 4: Simplify right side
    618,192,706.20x = 569,251,657,656,115,328
  5. Step 5: Solve for x
    x = 569,251,657,656,115,328/618,192,706.20
  6. Step 6: Final answer
    x = 920,832,051.15

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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.