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Finding the Fourth Proportional to 498,480.30, 747,720.45 and 166,056.30

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Solution

The fourth proportional to 498,480.30, 747,720.45 and 166,056.30 is: 249,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,480.30 : 747,720.45 = 166,056.30 : x
  2. Step 2: Convert to fraction form
    498,480.30/747,720.45 = 166,056.30/x
  3. Step 3: Cross multiply
    498,480.30x = 747,720.45 × 166,056.30
  4. Step 4: Simplify right side
    498,480.30x = 124,163,691,361.34
  5. Step 5: Solve for x
    x = 124,163,691,361.34/498,480.30
  6. Step 6: Final answer
    x = 249,084.45

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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.