Home / 811,353.30-1,217,145.15-250,329.30

Finding the Fourth Proportional to 811,353.30, 1,217,145.15 and 250,329.30

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Solution

The fourth proportional to 811,353.30, 1,217,145.15 and 250,329.30 is: 375,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,353.30 : 1,217,145.15 = 250,329.30 : x
  2. Step 2: Convert to fraction form
    811,353.30/1,217,145.15 = 250,329.30/x
  3. Step 3: Cross multiply
    811,353.30x = 1,217,145.15 × 250,329.30
  4. Step 4: Simplify right side
    811,353.30x = 304,687,093,397.90
  5. Step 5: Solve for x
    x = 304,687,093,397.90/811,353.30
  6. Step 6: Final answer
    x = 375,529.49

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Half scale
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Double scale
Find fourth proportional to 811,354.30, 1,217,146.65 and 250,330.30
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.