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Finding the Fourth Proportional to 543,738.60, 813,995.10 and 404,116.20

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Solution

The fourth proportional to 543,738.60, 813,995.10 and 404,116.20 is: 604,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,738.60 : 813,995.10 = 404,116.20 : x
  2. Step 2: Convert to fraction form
    543,738.60/813,995.10 = 404,116.20/x
  3. Step 3: Cross multiply
    543,738.60x = 813,995.10 × 404,116.20
  4. Step 4: Simplify right side
    543,738.60x = 328,948,606,630.62
  5. Step 5: Solve for x
    x = 328,948,606,630.62/543,738.60
  6. Step 6: Final answer
    x = 604,975.64

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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.