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Finding the Fourth Proportional to 580,633,603.20, 870,950,404.80 and 478,512,950.40

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Solution

The fourth proportional to 580,633,603.20, 870,950,404.80 and 478,512,950.40 is: 717,769,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,633,603.20 : 870,950,404.80 = 478,512,950.40 : x
  2. Step 2: Convert to fraction form
    580,633,603.20/870,950,404.80 = 478,512,950.40/x
  3. Step 3: Cross multiply
    580,633,603.20x = 870,950,404.80 × 478,512,950.40
  4. Step 4: Simplify right side
    580,633,603.20x = 416,761,047,852,922,304
  5. Step 5: Solve for x
    x = 416,761,047,852,922,304/580,633,603.20
  6. Step 6: Final answer
    x = 717,769,425.60

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1.5x scale

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.