Home / 521,014.20-781,521.30-166,054.20

Finding the Fourth Proportional to 521,014.20, 781,521.30 and 166,054.20

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Solution

The fourth proportional to 521,014.20, 781,521.30 and 166,054.20 is: 249,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,014.20 : 781,521.30 = 166,054.20 : x
  2. Step 2: Convert to fraction form
    521,014.20/781,521.30 = 166,054.20/x
  3. Step 3: Cross multiply
    521,014.20x = 781,521.30 × 166,054.20
  4. Step 4: Simplify right side
    521,014.20x = 129,774,894,254.46
  5. Step 5: Solve for x
    x = 129,774,894,254.46/521,014.20
  6. Step 6: Final answer
    x = 249,081.30

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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.