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Finding the Fourth Proportional to 543,317.80, 814,976.70 and 403,349.80

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Solution

The fourth proportional to 543,317.80, 814,976.70 and 403,349.80 is: 605,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,317.80 : 814,976.70 = 403,349.80 : x
  2. Step 2: Convert to fraction form
    543,317.80/814,976.70 = 403,349.80/x
  3. Step 3: Cross multiply
    543,317.80x = 814,976.70 × 403,349.80
  4. Step 4: Simplify right side
    543,317.80x = 328,720,688,949.66
  5. Step 5: Solve for x
    x = 328,720,688,949.66/543,317.80
  6. Step 6: Final answer
    x = 605,024.70

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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.