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Finding the Fourth Proportional to 527,349.76, 727,736.88 and 285,626.32

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Solution

The fourth proportional to 527,349.76, 727,736.88 and 285,626.32 is: 394,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,349.76 : 727,736.88 = 285,626.32 : x
  2. Step 2: Convert to fraction form
    527,349.76/727,736.88 = 285,626.32/x
  3. Step 3: Cross multiply
    527,349.76x = 727,736.88 × 285,626.32
  4. Step 4: Simplify right side
    527,349.76x = 207,860,806,962.68
  5. Step 5: Solve for x
    x = 207,860,806,962.68/527,349.76
  6. Step 6: Final answer
    x = 394,161.19

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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.