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Finding the Fourth Proportional to 374,084.61, 561,301.88 and 216,445.65

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Solution

The fourth proportional to 374,084.61, 561,301.88 and 216,445.65 is: 324,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,084.61 : 561,301.88 = 216,445.65 : x
  2. Step 2: Convert to fraction form
    374,084.61/561,301.88 = 216,445.65/x
  3. Step 3: Cross multiply
    374,084.61x = 561,301.88 × 216,445.65
  4. Step 4: Simplify right side
    374,084.61x = 121,491,349,180.59
  5. Step 5: Solve for x
    x = 121,491,349,180.59/374,084.61
  6. Step 6: Final answer
    x = 324,769.71

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1.5x scale

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.