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Finding the Fourth Proportional to 354,967.70, 532,451.55 and 221,998.10

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Solution

The fourth proportional to 354,967.70, 532,451.55 and 221,998.10 is: 332,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,967.70 : 532,451.55 = 221,998.10 : x
  2. Step 2: Convert to fraction form
    354,967.70/532,451.55 = 221,998.10/x
  3. Step 3: Cross multiply
    354,967.70x = 532,451.55 × 221,998.10
  4. Step 4: Simplify right side
    354,967.70x = 118,203,232,442.06
  5. Step 5: Solve for x
    x = 118,203,232,442.06/354,967.70
  6. Step 6: Final answer
    x = 332,997.15

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Half scale
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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.