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Finding the Fourth Proportional to 475,281.38, 655,887.93 and 260,434.82

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Solution

The fourth proportional to 475,281.38, 655,887.93 and 260,434.82 is: 359,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,281.38 : 655,887.93 = 260,434.82 : x
  2. Step 2: Convert to fraction form
    475,281.38/655,887.93 = 260,434.82/x
  3. Step 3: Cross multiply
    475,281.38x = 655,887.93 × 260,434.82
  4. Step 4: Simplify right side
    475,281.38x = 170,816,054,989.72
  5. Step 5: Solve for x
    x = 170,816,054,989.72/475,281.38
  6. Step 6: Final answer
    x = 359,399.85

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1.5x scale

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.