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Finding the Fourth Proportional to 363,326.80, 544,990.20 and 97,128.40

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Solution

The fourth proportional to 363,326.80, 544,990.20 and 97,128.40 is: 145,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,326.80 : 544,990.20 = 97,128.40 : x
  2. Step 2: Convert to fraction form
    363,326.80/544,990.20 = 97,128.40/x
  3. Step 3: Cross multiply
    363,326.80x = 544,990.20 × 97,128.40
  4. Step 4: Simplify right side
    363,326.80x = 52,934,026,141.68
  5. Step 5: Solve for x
    x = 52,934,026,141.68/363,326.80
  6. Step 6: Final answer
    x = 145,692.60

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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.