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Finding the Fourth Proportional to 367,632.40, 515,385.20 and 367,632.40

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Solution

The fourth proportional to 367,632.40, 515,385.20 and 367,632.40 is: 515,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,632.40 : 515,385.20 = 367,632.40 : x
  2. Step 2: Convert to fraction form
    367,632.40/515,385.20 = 367,632.40/x
  3. Step 3: Cross multiply
    367,632.40x = 515,385.20 × 367,632.40
  4. Step 4: Simplify right side
    367,632.40x = 189,472,298,000.48
  5. Step 5: Solve for x
    x = 189,472,298,000.48/367,632.40
  6. Step 6: Final answer
    x = 515,385.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.