Home / 515,111.20-772,666.80-141,134.20

Finding the Fourth Proportional to 515,111.20, 772,666.80 and 141,134.20

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Solution

The fourth proportional to 515,111.20, 772,666.80 and 141,134.20 is: 211,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,111.20 : 772,666.80 = 141,134.20 : x
  2. Step 2: Convert to fraction form
    515,111.20/772,666.80 = 141,134.20/x
  3. Step 3: Cross multiply
    515,111.20x = 772,666.80 × 141,134.20
  4. Step 4: Simplify right side
    515,111.20x = 109,049,710,684.56
  5. Step 5: Solve for x
    x = 109,049,710,684.56/515,111.20
  6. Step 6: Final answer
    x = 211,701.30

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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.