Home / 897,680.26-1,238,846.16-515,731.78

Finding the Fourth Proportional to 897,680.26, 1,238,846.16 and 515,731.78

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Solution

The fourth proportional to 897,680.26, 1,238,846.16 and 515,731.78 is: 711,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,680.26 : 1,238,846.16 = 515,731.78 : x
  2. Step 2: Convert to fraction form
    897,680.26/1,238,846.16 = 515,731.78/x
  3. Step 3: Cross multiply
    897,680.26x = 1,238,846.16 × 515,731.78
  4. Step 4: Simplify right side
    897,680.26x = 638,912,335,242.97
  5. Step 5: Solve for x
    x = 638,912,335,242.97/897,680.26
  6. Step 6: Final answer
    x = 711,737.09

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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.