Home / 521,626,233.60-782,439,350.40-279,761,529.60

Finding the Fourth Proportional to 521,626,233.60, 782,439,350.40 and 279,761,529.60

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Solution

The fourth proportional to 521,626,233.60, 782,439,350.40 and 279,761,529.60 is: 419,642,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,626,233.60 : 782,439,350.40 = 279,761,529.60 : x
  2. Step 2: Convert to fraction form
    521,626,233.60/782,439,350.40 = 279,761,529.60/x
  3. Step 3: Cross multiply
    521,626,233.60x = 782,439,350.40 × 279,761,529.60
  4. Step 4: Simplify right side
    521,626,233.60x = 218,896,429,487,134,368
  5. Step 5: Solve for x
    x = 218,896,429,487,134,368/521,626,233.60
  6. Step 6: Final answer
    x = 419,642,294.40

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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.