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Finding the Fourth Proportional to 616,586.40, 924,922.80 and 261,560.16

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Solution

The fourth proportional to 616,586.40, 924,922.80 and 261,560.16 is: 392,358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,586.40 : 924,922.80 = 261,560.16 : x
  2. Step 2: Convert to fraction form
    616,586.40/924,922.80 = 261,560.16/x
  3. Step 3: Cross multiply
    616,586.40x = 924,922.80 × 261,560.16
  4. Step 4: Simplify right side
    616,586.40x = 241,922,955,555.65
  5. Step 5: Solve for x
    x = 241,922,955,555.65/616,586.40
  6. Step 6: Final answer
    x = 392,358.57

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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.