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Finding the Fourth Proportional to 540,519.62, 745,926.16 and 314,165.12

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Solution

The fourth proportional to 540,519.62, 745,926.16 and 314,165.12 is: 433,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,519.62 : 745,926.16 = 314,165.12 : x
  2. Step 2: Convert to fraction form
    540,519.62/745,926.16 = 314,165.12/x
  3. Step 3: Cross multiply
    540,519.62x = 745,926.16 × 314,165.12
  4. Step 4: Simplify right side
    540,519.62x = 234,343,981,567.54
  5. Step 5: Solve for x
    x = 234,343,981,567.54/540,519.62
  6. Step 6: Final answer
    x = 433,553.15

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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.