Home / 813,708.32-1,122,915.56-451,122.89

Finding the Fourth Proportional to 813,708.32, 1,122,915.56 and 451,122.89

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Solution

The fourth proportional to 813,708.32, 1,122,915.56 and 451,122.89 is: 622,548.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,708.32 : 1,122,915.56 = 451,122.89 : x
  2. Step 2: Convert to fraction form
    813,708.32/1,122,915.56 = 451,122.89/x
  3. Step 3: Cross multiply
    813,708.32x = 1,122,915.56 × 451,122.89
  4. Step 4: Simplify right side
    813,708.32x = 506,572,904,782.98
  5. Step 5: Solve for x
    x = 506,572,904,782.98/813,708.32
  6. Step 6: Final answer
    x = 622,548.52

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Double scale
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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.