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Finding the Fourth Proportional to 475,286.67, 655,895.52 and 260,434.80

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Solution

The fourth proportional to 475,286.67, 655,895.52 and 260,434.80 is: 359,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,286.67 : 655,895.52 = 260,434.80 : x
  2. Step 2: Convert to fraction form
    475,286.67/655,895.52 = 260,434.80/x
  3. Step 3: Cross multiply
    475,286.67x = 655,895.52 × 260,434.80
  4. Step 4: Simplify right side
    475,286.67x = 170,818,018,572.10
  5. Step 5: Solve for x
    x = 170,818,018,572.10/475,286.67
  6. Step 6: Final answer
    x = 359,399.98

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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.