Home / 577,027.20-865,540.80-257,178.45

Finding the Fourth Proportional to 577,027.20, 865,540.80 and 257,178.45

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Solution

The fourth proportional to 577,027.20, 865,540.80 and 257,178.45 is: 385,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,027.20 : 865,540.80 = 257,178.45 : x
  2. Step 2: Convert to fraction form
    577,027.20/865,540.80 = 257,178.45/x
  3. Step 3: Cross multiply
    577,027.20x = 865,540.80 × 257,178.45
  4. Step 4: Simplify right side
    577,027.20x = 222,598,441,355.76
  5. Step 5: Solve for x
    x = 222,598,441,355.76/577,027.20
  6. Step 6: Final answer
    x = 385,767.68

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Similar ratio
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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.