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Finding the Fourth Proportional to 475,155.61, 655,722.18 and 260,281.49

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Solution

The fourth proportional to 475,155.61, 655,722.18 and 260,281.49 is: 359,192.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,155.61 : 655,722.18 = 260,281.49 : x
  2. Step 2: Convert to fraction form
    475,155.61/655,722.18 = 260,281.49/x
  3. Step 3: Cross multiply
    475,155.61x = 655,722.18 × 260,281.49
  4. Step 4: Simplify right side
    475,155.61x = 170,672,344,735.04
  5. Step 5: Solve for x
    x = 170,672,344,735.04/475,155.61
  6. Step 6: Final answer
    x = 359,192.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.