Home / 537,976.20-806,964.30-143,992.20

Finding the Fourth Proportional to 537,976.20, 806,964.30 and 143,992.20

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Solution

The fourth proportional to 537,976.20, 806,964.30 and 143,992.20 is: 215,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,976.20 : 806,964.30 = 143,992.20 : x
  2. Step 2: Convert to fraction form
    537,976.20/806,964.30 = 143,992.20/x
  3. Step 3: Cross multiply
    537,976.20x = 806,964.30 × 143,992.20
  4. Step 4: Simplify right side
    537,976.20x = 116,196,564,878.46
  5. Step 5: Solve for x
    x = 116,196,564,878.46/537,976.20
  6. Step 6: Final answer
    x = 215,988.30

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Half scale
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Double scale
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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.