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Finding the Fourth Proportional to 615,860.01, 924,082.43 and 426,611.61

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Solution

The fourth proportional to 615,860.01, 924,082.43 and 426,611.61 is: 640,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,860.01 : 924,082.43 = 426,611.61 : x
  2. Step 2: Convert to fraction form
    615,860.01/924,082.43 = 426,611.61/x
  3. Step 3: Cross multiply
    615,860.01x = 924,082.43 × 426,611.61
  4. Step 4: Simplify right side
    615,860.01x = 394,224,291,101.95
  5. Step 5: Solve for x
    x = 394,224,291,101.95/615,860.01
  6. Step 6: Final answer
    x = 640,119.97

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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.