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Finding the Fourth Proportional to 526,892.32, 727,105.68 and 285,173.92

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Solution

The fourth proportional to 526,892.32, 727,105.68 and 285,173.92 is: 393,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,892.32 : 727,105.68 = 285,173.92 : x
  2. Step 2: Convert to fraction form
    526,892.32/727,105.68 = 285,173.92/x
  3. Step 3: Cross multiply
    526,892.32x = 727,105.68 × 285,173.92
  4. Step 4: Simplify right side
    526,892.32x = 207,351,577,019.87
  5. Step 5: Solve for x
    x = 207,351,577,019.87/526,892.32
  6. Step 6: Final answer
    x = 393,536.91

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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.