Home / 520,786.02-781,265.59-179,215.80

Finding the Fourth Proportional to 520,786.02, 781,265.59 and 179,215.80

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Solution

The fourth proportional to 520,786.02, 781,265.59 and 179,215.80 is: 268,853.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,786.02 : 781,265.59 = 179,215.80 : x
  2. Step 2: Convert to fraction form
    520,786.02/781,265.59 = 179,215.80/x
  3. Step 3: Cross multiply
    520,786.02x = 781,265.59 × 179,215.80
  4. Step 4: Simplify right side
    520,786.02x = 140,015,138,172.36
  5. Step 5: Solve for x
    x = 140,015,138,172.36/520,786.02
  6. Step 6: Final answer
    x = 268,853.49

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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.