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Finding the Fourth Proportional to 475,061.68, 655,585.20 and 260,209.43

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Solution

The fourth proportional to 475,061.68, 655,585.20 and 260,209.43 is: 359,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,061.68 : 655,585.20 = 260,209.43 : x
  2. Step 2: Convert to fraction form
    475,061.68/655,585.20 = 260,209.43/x
  3. Step 3: Cross multiply
    475,061.68x = 655,585.20 × 260,209.43
  4. Step 4: Simplify right side
    475,061.68x = 170,589,451,954.79
  5. Step 5: Solve for x
    x = 170,589,451,954.79/475,061.68
  6. Step 6: Final answer
    x = 359,089.06

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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.