Home / 535,626.81-739,111.17-320,761.35

Finding the Fourth Proportional to 535,626.81, 739,111.17 and 320,761.35

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Solution

The fourth proportional to 535,626.81, 739,111.17 and 320,761.35 is: 442,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,626.81 : 739,111.17 = 320,761.35 : x
  2. Step 2: Convert to fraction form
    535,626.81/739,111.17 = 320,761.35/x
  3. Step 3: Cross multiply
    535,626.81x = 739,111.17 × 320,761.35
  4. Step 4: Simplify right side
    535,626.81x = 237,078,296,689.28
  5. Step 5: Solve for x
    x = 237,078,296,689.28/535,626.81
  6. Step 6: Final answer
    x = 442,618.43

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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.