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Finding the Fourth Proportional to 475,139.84, 655,693.14 and 260,287.64

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Solution

The fourth proportional to 475,139.84, 655,693.14 and 260,287.64 is: 359,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,139.84 : 655,693.14 = 260,287.64 : x
  2. Step 2: Convert to fraction form
    475,139.84/655,693.14 = 260,287.64/x
  3. Step 3: Cross multiply
    475,139.84x = 655,693.14 × 260,287.64
  4. Step 4: Simplify right side
    475,139.84x = 170,668,819,974.79
  5. Step 5: Solve for x
    x = 170,668,819,974.79/475,139.84
  6. Step 6: Final answer
    x = 359,197.03

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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.