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Finding the Fourth Proportional to 616,254.32, 850,352.81 and 361,512.56

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Solution

The fourth proportional to 616,254.32, 850,352.81 and 361,512.56 is: 498,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,254.32 : 850,352.81 = 361,512.56 : x
  2. Step 2: Convert to fraction form
    616,254.32/850,352.81 = 361,512.56/x
  3. Step 3: Cross multiply
    616,254.32x = 850,352.81 × 361,512.56
  4. Step 4: Simplify right side
    616,254.32x = 307,413,221,564.61
  5. Step 5: Solve for x
    x = 307,413,221,564.61/616,254.32
  6. Step 6: Final answer
    x = 498,841.49

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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.