Home / 817,514.25-1,226,315.12-256,592.49

Finding the Fourth Proportional to 817,514.25, 1,226,315.12 and 256,592.49

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Solution

The fourth proportional to 817,514.25, 1,226,315.12 and 256,592.49 is: 384,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,514.25 : 1,226,315.12 = 256,592.49 : x
  2. Step 2: Convert to fraction form
    817,514.25/1,226,315.12 = 256,592.49/x
  3. Step 3: Cross multiply
    817,514.25x = 1,226,315.12 × 256,592.49
  4. Step 4: Simplify right side
    817,514.25x = 314,663,248,882.49
  5. Step 5: Solve for x
    x = 314,663,248,882.49/817,514.25
  6. Step 6: Final answer
    x = 384,902.46

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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.