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Finding the Fourth Proportional to 580,637,868.80, 870,956,803.20 and 501,807,891.20

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Solution

The fourth proportional to 580,637,868.80, 870,956,803.20 and 501,807,891.20 is: 752,711,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,637,868.80 : 870,956,803.20 = 501,807,891.20 : x
  2. Step 2: Convert to fraction form
    580,637,868.80/870,956,803.20 = 501,807,891.20/x
  3. Step 3: Cross multiply
    580,637,868.80x = 870,956,803.20 × 501,807,891.20
  4. Step 4: Simplify right side
    580,637,868.80x = 437,052,996,740,085,440
  5. Step 5: Solve for x
    x = 437,052,996,740,085,440/580,637,868.80
  6. Step 6: Final answer
    x = 752,711,836.80

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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.