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Finding the Fourth Proportional to 332,420.60, 498,630.90 and 199,232.30

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Solution

The fourth proportional to 332,420.60, 498,630.90 and 199,232.30 is: 298,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,420.60 : 498,630.90 = 199,232.30 : x
  2. Step 2: Convert to fraction form
    332,420.60/498,630.90 = 199,232.30/x
  3. Step 3: Cross multiply
    332,420.60x = 498,630.90 × 199,232.30
  4. Step 4: Simplify right side
    332,420.60x = 99,343,381,058.07
  5. Step 5: Solve for x
    x = 99,343,381,058.07/332,420.60
  6. Step 6: Final answer
    x = 298,848.45

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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.