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Finding the Fourth Proportional to 346,689.20, 520,033.80 and 293,545.10

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Solution

The fourth proportional to 346,689.20, 520,033.80 and 293,545.10 is: 440,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,689.20 : 520,033.80 = 293,545.10 : x
  2. Step 2: Convert to fraction form
    346,689.20/520,033.80 = 293,545.10/x
  3. Step 3: Cross multiply
    346,689.20x = 520,033.80 × 293,545.10
  4. Step 4: Simplify right side
    346,689.20x = 152,653,373,824.38
  5. Step 5: Solve for x
    x = 152,653,373,824.38/346,689.20
  6. Step 6: Final answer
    x = 440,317.65

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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.