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Finding the Fourth Proportional to 307,546.40, 461,319.60 and 97,248.80

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Solution

The fourth proportional to 307,546.40, 461,319.60 and 97,248.80 is: 145,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,546.40 : 461,319.60 = 97,248.80 : x
  2. Step 2: Convert to fraction form
    307,546.40/461,319.60 = 97,248.80/x
  3. Step 3: Cross multiply
    307,546.40x = 461,319.60 × 97,248.80
  4. Step 4: Simplify right side
    307,546.40x = 44,862,777,516.48
  5. Step 5: Solve for x
    x = 44,862,777,516.48/307,546.40
  6. Step 6: Final answer
    x = 145,873.20

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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.