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Finding the Fourth Proportional to 527,197.89, 727,531.77 and 285,480.46

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Solution

The fourth proportional to 527,197.89, 727,531.77 and 285,480.46 is: 393,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,197.89 : 727,531.77 = 285,480.46 : x
  2. Step 2: Convert to fraction form
    527,197.89/727,531.77 = 285,480.46/x
  3. Step 3: Cross multiply
    527,197.89x = 727,531.77 × 285,480.46
  4. Step 4: Simplify right side
    527,197.89x = 207,696,106,344.18
  5. Step 5: Solve for x
    x = 207,696,106,344.18/527,197.89
  6. Step 6: Final answer
    x = 393,962.32

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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.