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Finding the Fourth Proportional to 355,217.19, 532,366.51 and 265,768.89

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Solution

The fourth proportional to 355,217.19, 532,366.51 and 265,768.89 is: 398,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,217.19 : 532,366.51 = 265,768.89 : x
  2. Step 2: Convert to fraction form
    355,217.19/532,366.51 = 265,768.89/x
  3. Step 3: Cross multiply
    355,217.19x = 532,366.51 × 265,768.89
  4. Step 4: Simplify right side
    355,217.19x = 141,486,452,445.20
  5. Step 5: Solve for x
    x = 141,486,452,445.20/355,217.19
  6. Step 6: Final answer
    x = 398,309.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.