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Finding the Fourth Proportional to 424,785.42, 637,265.61 and 355,151.34

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Solution

The fourth proportional to 424,785.42, 637,265.61 and 355,151.34 is: 532,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,785.42 : 637,265.61 = 355,151.34 : x
  2. Step 2: Convert to fraction form
    424,785.42/637,265.61 = 355,151.34/x
  3. Step 3: Cross multiply
    424,785.42x = 637,265.61 × 355,151.34
  4. Step 4: Simplify right side
    424,785.42x = 226,325,735,327.42
  5. Step 5: Solve for x
    x = 226,325,735,327.42/424,785.42
  6. Step 6: Final answer
    x = 532,800.15

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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.