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Finding the Fourth Proportional to 515,566.66, 773,165.42 and 178,516.84

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Solution

The fourth proportional to 515,566.66, 773,165.42 and 178,516.84 is: 267,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,566.66 : 773,165.42 = 178,516.84 : x
  2. Step 2: Convert to fraction form
    515,566.66/773,165.42 = 178,516.84/x
  3. Step 3: Cross multiply
    515,566.66x = 773,165.42 × 178,516.84
  4. Step 4: Simplify right side
    515,566.66x = 138,023,047,575.67
  5. Step 5: Solve for x
    x = 138,023,047,575.67/515,566.66
  6. Step 6: Final answer
    x = 267,711.35

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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.