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Finding the Fourth Proportional to 376,489.78, 564,568.89 and 176,866.90

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Solution

The fourth proportional to 376,489.78, 564,568.89 and 176,866.90 is: 265,222.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,489.78 : 564,568.89 = 176,866.90 : x
  2. Step 2: Convert to fraction form
    376,489.78/564,568.89 = 176,866.90/x
  3. Step 3: Cross multiply
    376,489.78x = 564,568.89 × 176,866.90
  4. Step 4: Simplify right side
    376,489.78x = 99,853,549,410.74
  5. Step 5: Solve for x
    x = 99,853,549,410.74/376,489.78
  6. Step 6: Final answer
    x = 265,222.47

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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.