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Finding the Fourth Proportional to 370,781.20, 556,171.80 and 202,236.40

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Solution

The fourth proportional to 370,781.20, 556,171.80 and 202,236.40 is: 303,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,781.20 : 556,171.80 = 202,236.40 : x
  2. Step 2: Convert to fraction form
    370,781.20/556,171.80 = 202,236.40/x
  3. Step 3: Cross multiply
    370,781.20x = 556,171.80 × 202,236.40
  4. Step 4: Simplify right side
    370,781.20x = 112,478,182,613.52
  5. Step 5: Solve for x
    x = 112,478,182,613.52/370,781.20
  6. Step 6: Final answer
    x = 303,354.60

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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.