Home / 865,433.15-1,194,343.60-521,377.38

Finding the Fourth Proportional to 865,433.15, 1,194,343.60 and 521,377.38

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Solution

The fourth proportional to 865,433.15, 1,194,343.60 and 521,377.38 is: 719,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,433.15 : 1,194,343.60 = 521,377.38 : x
  2. Step 2: Convert to fraction form
    865,433.15/1,194,343.60 = 521,377.38/x
  3. Step 3: Cross multiply
    865,433.15x = 1,194,343.60 × 521,377.38
  4. Step 4: Simplify right side
    865,433.15x = 622,703,737,821.46
  5. Step 5: Solve for x
    x = 622,703,737,821.46/865,433.15
  6. Step 6: Final answer
    x = 719,528.41

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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.