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Finding the Fourth Proportional to 475,064.19, 655,588.65 and 260,211.93

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Solution

The fourth proportional to 475,064.19, 655,588.65 and 260,211.93 is: 359,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,064.19 : 655,588.65 = 260,211.93 : x
  2. Step 2: Convert to fraction form
    475,064.19/655,588.65 = 260,211.93/x
  3. Step 3: Cross multiply
    475,064.19x = 655,588.65 × 260,211.93
  4. Step 4: Simplify right side
    475,064.19x = 170,591,987,902.60
  5. Step 5: Solve for x
    x = 170,591,987,902.60/475,064.19
  6. Step 6: Final answer
    x = 359,092.50

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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.