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Finding the Fourth Proportional to 417,866,145.30, 626,799,217.95 and 417,866,145.30

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Solution

The fourth proportional to 417,866,145.30, 626,799,217.95 and 417,866,145.30 is: 626,799,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,866,145.30 : 626,799,217.95 = 417,866,145.30 : x
  2. Step 2: Convert to fraction form
    417,866,145.30/626,799,217.95 = 417,866,145.30/x
  3. Step 3: Cross multiply
    417,866,145.30x = 626,799,217.95 × 417,866,145.30
  4. Step 4: Simplify right side
    417,866,145.30x = 261,918,173,081,821,088
  5. Step 5: Solve for x
    x = 261,918,173,081,821,088/417,866,145.30
  6. Step 6: Final answer
    x = 626,799,217.95

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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.