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Finding the Fourth Proportional to 543,760.53, 750,220.23 and 314,234.19

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Solution

The fourth proportional to 543,760.53, 750,220.23 and 314,234.19 is: 433,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,760.53 : 750,220.23 = 314,234.19 : x
  2. Step 2: Convert to fraction form
    543,760.53/750,220.23 = 314,234.19/x
  3. Step 3: Cross multiply
    543,760.53x = 750,220.23 × 314,234.19
  4. Step 4: Simplify right side
    543,760.53x = 235,744,846,295.66
  5. Step 5: Solve for x
    x = 235,744,846,295.66/543,760.53
  6. Step 6: Final answer
    x = 433,545.34

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Half scale
Find fourth proportional to 1,087,521.06, 1,500,440.46 and 628,468.38
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.