Home / 765,543.38-1,056,450.47-443,270.70

Finding the Fourth Proportional to 765,543.38, 1,056,450.47 and 443,270.70

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Solution

The fourth proportional to 765,543.38, 1,056,450.47 and 443,270.70 is: 611,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,543.38 : 1,056,450.47 = 443,270.70 : x
  2. Step 2: Convert to fraction form
    765,543.38/1,056,450.47 = 443,270.70/x
  3. Step 3: Cross multiply
    765,543.38x = 1,056,450.47 × 443,270.70
  4. Step 4: Simplify right side
    765,543.38x = 468,293,537,135.88
  5. Step 5: Solve for x
    x = 468,293,537,135.88/765,543.38
  6. Step 6: Final answer
    x = 611,713.92

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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.