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Finding the Fourth Proportional to 621,567,688.09, 932,351,532.13 and 621,567,688.09

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Solution

The fourth proportional to 621,567,688.09, 932,351,532.13 and 621,567,688.09 is: 932,351,532.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,567,688.09 : 932,351,532.13 = 621,567,688.09 : x
  2. Step 2: Convert to fraction form
    621,567,688.09/932,351,532.13 = 621,567,688.09/x
  3. Step 3: Cross multiply
    621,567,688.09x = 932,351,532.13 × 621,567,688.09
  4. Step 4: Simplify right side
    621,567,688.09x = 579,519,586,313,213,440
  5. Step 5: Solve for x
    x = 579,519,586,313,213,440/621,567,688.09
  6. Step 6: Final answer
    x = 932,351,532.13

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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.