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Finding the Fourth Proportional to 402,818.17, 604,097.91 and 132,885.64

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Solution

The fourth proportional to 402,818.17, 604,097.91 and 132,885.64 is: 199,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,818.17 : 604,097.91 = 132,885.64 : x
  2. Step 2: Convert to fraction form
    402,818.17/604,097.91 = 132,885.64/x
  3. Step 3: Cross multiply
    402,818.17x = 604,097.91 × 132,885.64
  4. Step 4: Simplify right side
    402,818.17x = 80,275,937,393.01
  5. Step 5: Solve for x
    x = 80,275,937,393.01/402,818.17
  6. Step 6: Final answer
    x = 199,285.79

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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.