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Finding the Fourth Proportional to 560,439.78, 840,666.96 and 186,462.78

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Solution

The fourth proportional to 560,439.78, 840,666.96 and 186,462.78 is: 279,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,439.78 : 840,666.96 = 186,462.78 : x
  2. Step 2: Convert to fraction form
    560,439.78/840,666.96 = 186,462.78/x
  3. Step 3: Cross multiply
    560,439.78x = 840,666.96 × 186,462.78
  4. Step 4: Simplify right side
    560,439.78x = 156,753,098,415.75
  5. Step 5: Solve for x
    x = 156,753,098,415.75/560,439.78
  6. Step 6: Final answer
    x = 279,696.60

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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.