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Finding the Fourth Proportional to 475,013.61, 655,501.14 and 260,155.44

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Solution

The fourth proportional to 475,013.61, 655,501.14 and 260,155.44 is: 359,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,013.61 : 655,501.14 = 260,155.44 : x
  2. Step 2: Convert to fraction form
    475,013.61/655,501.14 = 260,155.44/x
  3. Step 3: Cross multiply
    475,013.61x = 655,501.14 × 260,155.44
  4. Step 4: Simplify right side
    475,013.61x = 170,532,187,497.20
  5. Step 5: Solve for x
    x = 170,532,187,497.20/475,013.61
  6. Step 6: Final answer
    x = 359,004.85

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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.