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Finding the Fourth Proportional to 493,671.78, 681,265.89 and 267,317.28

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Solution

The fourth proportional to 493,671.78, 681,265.89 and 267,317.28 is: 368,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,671.78 : 681,265.89 = 267,317.28 : x
  2. Step 2: Convert to fraction form
    493,671.78/681,265.89 = 267,317.28/x
  3. Step 3: Cross multiply
    493,671.78x = 681,265.89 × 267,317.28
  4. Step 4: Simplify right side
    493,671.78x = 182,114,144,671.58
  5. Step 5: Solve for x
    x = 182,114,144,671.58/493,671.78
  6. Step 6: Final answer
    x = 368,897.21

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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.