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Finding the Fourth Proportional to 970,752,929.70, 1,456,129,394.55 and 626,767,572.90

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Solution

The fourth proportional to 970,752,929.70, 1,456,129,394.55 and 626,767,572.90 is: 940,151,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,752,929.70 : 1,456,129,394.55 = 626,767,572.90 : x
  2. Step 2: Convert to fraction form
    970,752,929.70/1,456,129,394.55 = 626,767,572.90/x
  3. Step 3: Cross multiply
    970,752,929.70x = 1,456,129,394.55 × 626,767,572.90
  4. Step 4: Simplify right side
    970,752,929.70x = 912,654,686,450,449,920
  5. Step 5: Solve for x
    x = 912,654,686,450,449,920/970,752,929.70
  6. Step 6: Final answer
    x = 940,151,359.35

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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.