Home / 921,997.52-1,382,207.45-353,786.38

Finding the Fourth Proportional to 921,997.52, 1,382,207.45 and 353,786.38

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Solution

The fourth proportional to 921,997.52, 1,382,207.45 and 353,786.38 is: 530,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,997.52 : 1,382,207.45 = 353,786.38 : x
  2. Step 2: Convert to fraction form
    921,997.52/1,382,207.45 = 353,786.38/x
  3. Step 3: Cross multiply
    921,997.52x = 1,382,207.45 × 353,786.38
  4. Step 4: Simplify right side
    921,997.52x = 489,006,171,831.12
  5. Step 5: Solve for x
    x = 489,006,171,831.12/921,997.52
  6. Step 6: Final answer
    x = 530,376.88

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Double scale
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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.