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Finding the Fourth Proportional to 543,328.56, 813,466.80 and 441,521.28

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Solution

The fourth proportional to 543,328.56, 813,466.80 and 441,521.28 is: 661,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,328.56 : 813,466.80 = 441,521.28 : x
  2. Step 2: Convert to fraction form
    543,328.56/813,466.80 = 441,521.28/x
  3. Step 3: Cross multiply
    543,328.56x = 813,466.80 × 441,521.28
  4. Step 4: Simplify right side
    543,328.56x = 359,162,902,773.50
  5. Step 5: Solve for x
    x = 359,162,902,773.50/543,328.56
  6. Step 6: Final answer
    x = 661,041.82

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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.