Home / 521,781,320.70-782,766,459.45-262,343,634.30

Finding the Fourth Proportional to 521,781,320.70, 782,766,459.45 and 262,343,634.30

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Solution

The fourth proportional to 521,781,320.70, 782,766,459.45 and 262,343,634.30 is: 393,562,953.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,781,320.70 : 782,766,459.45 = 262,343,634.30 : x
  2. Step 2: Convert to fraction form
    521,781,320.70/782,766,459.45 = 262,343,634.30/x
  3. Step 3: Cross multiply
    521,781,320.70x = 782,766,459.45 × 262,343,634.30
  4. Step 4: Simplify right side
    521,781,320.70x = 205,353,797,780,256,608
  5. Step 5: Solve for x
    x = 205,353,797,780,256,608/521,781,320.70
  6. Step 6: Final answer
    x = 393,562,953.74

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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.