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Finding the Fourth Proportional to 475,133.76, 655,661.12 and 260,274.56

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Solution

The fourth proportional to 475,133.76, 655,661.12 and 260,274.56 is: 359,166.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,133.76 : 655,661.12 = 260,274.56 : x
  2. Step 2: Convert to fraction form
    475,133.76/655,661.12 = 260,274.56/x
  3. Step 3: Cross multiply
    475,133.76x = 655,661.12 × 260,274.56
  4. Step 4: Simplify right side
    475,133.76x = 170,651,909,517.11
  5. Step 5: Solve for x
    x = 170,651,909,517.11/475,133.76
  6. Step 6: Final answer
    x = 359,166.04

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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.