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Finding the Fourth Proportional to 672,007.20, 927,369.52 and 370,201.20

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Solution

The fourth proportional to 672,007.20, 927,369.52 and 370,201.20 is: 510,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,007.20 : 927,369.52 = 370,201.20 : x
  2. Step 2: Convert to fraction form
    672,007.20/927,369.52 = 370,201.20/x
  3. Step 3: Cross multiply
    672,007.20x = 927,369.52 × 370,201.20
  4. Step 4: Simplify right side
    672,007.20x = 343,313,309,147.42
  5. Step 5: Solve for x
    x = 343,313,309,147.42/672,007.20
  6. Step 6: Final answer
    x = 510,877.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.