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Finding the Fourth Proportional to 514,516.68, 710,279.82 and 361,685.88

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Solution

The fourth proportional to 514,516.68, 710,279.82 and 361,685.88 is: 499,300.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,516.68 : 710,279.82 = 361,685.88 : x
  2. Step 2: Convert to fraction form
    514,516.68/710,279.82 = 361,685.88/x
  3. Step 3: Cross multiply
    514,516.68x = 710,279.82 × 361,685.88
  4. Step 4: Simplify right side
    514,516.68x = 256,898,181,742.94
  5. Step 5: Solve for x
    x = 256,898,181,742.94/514,516.68
  6. Step 6: Final answer
    x = 499,300.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.