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Finding the Fourth Proportional to 543,306.70, 814,960.05 and 501,316.30

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Solution

The fourth proportional to 543,306.70, 814,960.05 and 501,316.30 is: 751,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,306.70 : 814,960.05 = 501,316.30 : x
  2. Step 2: Convert to fraction form
    543,306.70/814,960.05 = 501,316.30/x
  3. Step 3: Cross multiply
    543,306.70x = 814,960.05 × 501,316.30
  4. Step 4: Simplify right side
    543,306.70x = 408,552,756,913.82
  5. Step 5: Solve for x
    x = 408,552,756,913.82/543,306.70
  6. Step 6: Final answer
    x = 751,974.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.