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Finding the Fourth Proportional to 653,191.65, 980,108.46 and 293,616.56

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Solution

The fourth proportional to 653,191.65, 980,108.46 and 293,616.56 is: 440,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,191.65 : 980,108.46 = 293,616.56 : x
  2. Step 2: Convert to fraction form
    653,191.65/980,108.46 = 293,616.56/x
  3. Step 3: Cross multiply
    653,191.65x = 980,108.46 × 293,616.56
  4. Step 4: Simplify right side
    653,191.65x = 287,776,069,551.56
  5. Step 5: Solve for x
    x = 287,776,069,551.56/653,191.65
  6. Step 6: Final answer
    x = 440,569.12

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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.