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Finding the Fourth Proportional to 475,431.39, 656,065.58 and 260,556.21

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Solution

The fourth proportional to 475,431.39, 656,065.58 and 260,556.21 is: 359,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,431.39 : 656,065.58 = 260,556.21 : x
  2. Step 2: Convert to fraction form
    475,431.39/656,065.58 = 260,556.21/x
  3. Step 3: Cross multiply
    475,431.39x = 656,065.58 × 260,556.21
  4. Step 4: Simplify right side
    475,431.39x = 170,941,959,733.47
  5. Step 5: Solve for x
    x = 170,941,959,733.47/475,431.39
  6. Step 6: Final answer
    x = 359,551.27

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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.