Home / 571,819.40-857,729.10-256,891.40

Finding the Fourth Proportional to 571,819.40, 857,729.10 and 256,891.40

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Solution

The fourth proportional to 571,819.40, 857,729.10 and 256,891.40 is: 385,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,819.40 : 857,729.10 = 256,891.40 : x
  2. Step 2: Convert to fraction form
    571,819.40/857,729.10 = 256,891.40/x
  3. Step 3: Cross multiply
    571,819.40x = 857,729.10 × 256,891.40
  4. Step 4: Simplify right side
    571,819.40x = 220,343,229,319.74
  5. Step 5: Solve for x
    x = 220,343,229,319.74/571,819.40
  6. Step 6: Final answer
    x = 385,337.10

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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.