Home / 739,683.72-1,020,753.56-413,001.76

Finding the Fourth Proportional to 739,683.72, 1,020,753.56 and 413,001.76

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Solution

The fourth proportional to 739,683.72, 1,020,753.56 and 413,001.76 is: 569,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,683.72 : 1,020,753.56 = 413,001.76 : x
  2. Step 2: Convert to fraction form
    739,683.72/1,020,753.56 = 413,001.76/x
  3. Step 3: Cross multiply
    739,683.72x = 1,020,753.56 × 413,001.76
  4. Step 4: Simplify right side
    739,683.72x = 421,573,016,806.27
  5. Step 5: Solve for x
    x = 421,573,016,806.27/739,683.72
  6. Step 6: Final answer
    x = 569,936.86

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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.