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Finding the Fourth Proportional to 295,539.20, 443,587.20 and 155,398.40

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Solution

The fourth proportional to 295,539.20, 443,587.20 and 155,398.40 is: 233,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,539.20 : 443,587.20 = 155,398.40 : x
  2. Step 2: Convert to fraction form
    295,539.20/443,587.20 = 155,398.40/x
  3. Step 3: Cross multiply
    295,539.20x = 443,587.20 × 155,398.40
  4. Step 4: Simplify right side
    295,539.20x = 68,932,741,140.48
  5. Step 5: Solve for x
    x = 68,932,741,140.48/295,539.20
  6. Step 6: Final answer
    x = 233,243.99

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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.