Home / 411,856.11-617,801.45-145,618.83

Finding the Fourth Proportional to 411,856.11, 617,801.45 and 145,618.83

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Solution

The fourth proportional to 411,856.11, 617,801.45 and 145,618.83 is: 218,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,856.11 : 617,801.45 = 145,618.83 : x
  2. Step 2: Convert to fraction form
    411,856.11/617,801.45 = 145,618.83/x
  3. Step 3: Cross multiply
    411,856.11x = 617,801.45 × 145,618.83
  4. Step 4: Simplify right side
    411,856.11x = 89,963,523,593.21
  5. Step 5: Solve for x
    x = 89,963,523,593.21/411,856.11
  6. Step 6: Final answer
    x = 218,434.35

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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.