Home / 817,967.30-1,226,950.95-219,020.90

Finding the Fourth Proportional to 817,967.30, 1,226,950.95 and 219,020.90

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Solution

The fourth proportional to 817,967.30, 1,226,950.95 and 219,020.90 is: 328,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,967.30 : 1,226,950.95 = 219,020.90 : x
  2. Step 2: Convert to fraction form
    817,967.30/1,226,950.95 = 219,020.90/x
  3. Step 3: Cross multiply
    817,967.30x = 1,226,950.95 × 219,020.90
  4. Step 4: Simplify right side
    817,967.30x = 268,727,901,324.86
  5. Step 5: Solve for x
    x = 268,727,901,324.86/817,967.30
  6. Step 6: Final answer
    x = 328,531.35

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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.