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Finding the Fourth Proportional to 417,744,005.70, 626,616,008.55 and 417,744,005.70

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Solution

The fourth proportional to 417,744,005.70, 626,616,008.55 and 417,744,005.70 is: 626,616,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,744,005.70 : 626,616,008.55 = 417,744,005.70 : x
  2. Step 2: Convert to fraction form
    417,744,005.70/626,616,008.55 = 417,744,005.70/x
  3. Step 3: Cross multiply
    417,744,005.70x = 626,616,008.55 × 417,744,005.70
  4. Step 4: Simplify right side
    417,744,005.70x = 261,765,081,447,422,432
  5. Step 5: Solve for x
    x = 261,765,081,447,422,432/417,744,005.70
  6. Step 6: Final answer
    x = 626,616,008.55

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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.