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Finding the Fourth Proportional to 295,399.20, 443,147.40 and 127,000.20

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Solution

The fourth proportional to 295,399.20, 443,147.40 and 127,000.20 is: 190,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,399.20 : 443,147.40 = 127,000.20 : x
  2. Step 2: Convert to fraction form
    295,399.20/443,147.40 = 127,000.20/x
  3. Step 3: Cross multiply
    295,399.20x = 443,147.40 × 127,000.20
  4. Step 4: Simplify right side
    295,399.20x = 56,279,808,429.48
  5. Step 5: Solve for x
    x = 56,279,808,429.48/295,399.20
  6. Step 6: Final answer
    x = 190,521.19

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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.