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Finding the Fourth Proportional to 367,805.76, 507,572.40 and 206,660.88

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Solution

The fourth proportional to 367,805.76, 507,572.40 and 206,660.88 is: 285,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,805.76 : 507,572.40 = 206,660.88 : x
  2. Step 2: Convert to fraction form
    367,805.76/507,572.40 = 206,660.88/x
  3. Step 3: Cross multiply
    367,805.76x = 507,572.40 × 206,660.88
  4. Step 4: Simplify right side
    367,805.76x = 104,895,358,847.71
  5. Step 5: Solve for x
    x = 104,895,358,847.71/367,805.76
  6. Step 6: Final answer
    x = 285,192.27

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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.