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Finding the Fourth Proportional to 484,954.85, 727,432.28 and 147,997.23

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Solution

The fourth proportional to 484,954.85, 727,432.28 and 147,997.23 is: 221,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,954.85 : 727,432.28 = 147,997.23 : x
  2. Step 2: Convert to fraction form
    484,954.85/727,432.28 = 147,997.23/x
  3. Step 3: Cross multiply
    484,954.85x = 727,432.28 × 147,997.23
  4. Step 4: Simplify right side
    484,954.85x = 107,657,959,539.72
  5. Step 5: Solve for x
    x = 107,657,959,539.72/484,954.85
  6. Step 6: Final answer
    x = 221,995.84

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.