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Finding the Fourth Proportional to 658,624.60, 985,604.10 and 448,672.60

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Solution

The fourth proportional to 658,624.60, 985,604.10 and 448,672.60 is: 671,419.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,624.60 : 985,604.10 = 448,672.60 : x
  2. Step 2: Convert to fraction form
    658,624.60/985,604.10 = 448,672.60/x
  3. Step 3: Cross multiply
    658,624.60x = 985,604.10 × 448,672.60
  4. Step 4: Simplify right side
    658,624.60x = 442,213,554,117.66
  5. Step 5: Solve for x
    x = 442,213,554,117.66/658,624.60
  6. Step 6: Final answer
    x = 671,419.73

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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.