Home / 566,182.13-781,336.80-311,538.78

Finding the Fourth Proportional to 566,182.13, 781,336.80 and 311,538.78

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Solution

The fourth proportional to 566,182.13, 781,336.80 and 311,538.78 is: 429,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,182.13 : 781,336.80 = 311,538.78 : x
  2. Step 2: Convert to fraction form
    566,182.13/781,336.80 = 311,538.78/x
  3. Step 3: Cross multiply
    566,182.13x = 781,336.80 × 311,538.78
  4. Step 4: Simplify right side
    566,182.13x = 243,416,713,441.10
  5. Step 5: Solve for x
    x = 243,416,713,441.10/566,182.13
  6. Step 6: Final answer
    x = 429,926.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.