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Finding the Fourth Proportional to 507,158.24, 699,900.24 and 280,803.76

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Solution

The fourth proportional to 507,158.24, 699,900.24 and 280,803.76 is: 387,521.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,158.24 : 699,900.24 = 280,803.76 : x
  2. Step 2: Convert to fraction form
    507,158.24/699,900.24 = 280,803.76/x
  3. Step 3: Cross multiply
    507,158.24x = 699,900.24 × 280,803.76
  4. Step 4: Simplify right side
    507,158.24x = 196,534,619,016.90
  5. Step 5: Solve for x
    x = 196,534,619,016.90/507,158.24
  6. Step 6: Final answer
    x = 387,521.30

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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.