Home / 500,226.02-690,247.56-285,353.24

Finding the Fourth Proportional to 500,226.02, 690,247.56 and 285,353.24

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Solution

The fourth proportional to 500,226.02, 690,247.56 and 285,353.24 is: 393,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,226.02 : 690,247.56 = 285,353.24 : x
  2. Step 2: Convert to fraction form
    500,226.02/690,247.56 = 285,353.24/x
  3. Step 3: Cross multiply
    500,226.02x = 690,247.56 × 285,353.24
  4. Step 4: Simplify right side
    500,226.02x = 196,964,377,648.09
  5. Step 5: Solve for x
    x = 196,964,377,648.09/500,226.02
  6. Step 6: Final answer
    x = 393,750.76

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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.