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Finding the Fourth Proportional to 591,854.40, 887,344.20 and 325,915.20

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Solution

The fourth proportional to 591,854.40, 887,344.20 and 325,915.20 is: 488,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,854.40 : 887,344.20 = 325,915.20 : x
  2. Step 2: Convert to fraction form
    591,854.40/887,344.20 = 325,915.20/x
  3. Step 3: Cross multiply
    591,854.40x = 887,344.20 × 325,915.20
  4. Step 4: Simplify right side
    591,854.40x = 289,198,962,411.84
  5. Step 5: Solve for x
    x = 289,198,962,411.84/591,854.40
  6. Step 6: Final answer
    x = 488,631.94

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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.