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Finding the Fourth Proportional to 612,381,657.70, 918,572,486.55 and 224,217,151.30

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Solution

The fourth proportional to 612,381,657.70, 918,572,486.55 and 224,217,151.30 is: 336,325,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,381,657.70 : 918,572,486.55 = 224,217,151.30 : x
  2. Step 2: Convert to fraction form
    612,381,657.70/918,572,486.55 = 224,217,151.30/x
  3. Step 3: Cross multiply
    612,381,657.70x = 918,572,486.55 × 224,217,151.30
  4. Step 4: Simplify right side
    612,381,657.70x = 205,959,706,196,798,560
  5. Step 5: Solve for x
    x = 205,959,706,196,798,560/612,381,657.70
  6. Step 6: Final answer
    x = 336,325,726.95

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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.