Home / 287,424.27-431,320.94-192,761.35

Finding the Fourth Proportional to 287,424.27, 431,320.94 and 192,761.35

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Solution

The fourth proportional to 287,424.27, 431,320.94 and 192,761.35 is: 289,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,424.27 : 431,320.94 = 192,761.35 : x
  2. Step 2: Convert to fraction form
    287,424.27/431,320.94 = 192,761.35/x
  3. Step 3: Cross multiply
    287,424.27x = 431,320.94 × 192,761.35
  4. Step 4: Simplify right side
    287,424.27x = 83,142,004,549.69
  5. Step 5: Solve for x
    x = 83,142,004,549.69/287,424.27
  6. Step 6: Final answer
    x = 289,265.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.