Home / 756,143.17-1,043,489.59-411,995.36

Finding the Fourth Proportional to 756,143.17, 1,043,489.59 and 411,995.36

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Solution

The fourth proportional to 756,143.17, 1,043,489.59 and 411,995.36 is: 568,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,143.17 : 1,043,489.59 = 411,995.36 : x
  2. Step 2: Convert to fraction form
    756,143.17/1,043,489.59 = 411,995.36/x
  3. Step 3: Cross multiply
    756,143.17x = 1,043,489.59 × 411,995.36
  4. Step 4: Simplify right side
    756,143.17x = 429,912,870,867.04
  5. Step 5: Solve for x
    x = 429,912,870,867.04/756,143.17
  6. Step 6: Final answer
    x = 568,560.15

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.