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Finding the Fourth Proportional to 752,703,800.88, 1,128,668,018.98 and 337,824,959.78

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Solution

The fourth proportional to 752,703,800.88, 1,128,668,018.98 and 337,824,959.78 is: 506,563,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,703,800.88 : 1,128,668,018.98 = 337,824,959.78 : x
  2. Step 2: Convert to fraction form
    752,703,800.88/1,128,668,018.98 = 337,824,959.78/x
  3. Step 3: Cross multiply
    752,703,800.88x = 1,128,668,018.98 × 337,824,959.78
  4. Step 4: Simplify right side
    752,703,800.88x = 381,292,228,116,890,752
  5. Step 5: Solve for x
    x = 381,292,228,116,890,752/752,703,800.88
  6. Step 6: Final answer
    x = 506,563,441.92

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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.