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Finding the Fourth Proportional to 554,555.60, 831,833.19 and 217,754.72

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Solution

The fourth proportional to 554,555.60, 831,833.19 and 217,754.72 is: 326,632.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,555.60 : 831,833.19 = 217,754.72 : x
  2. Step 2: Convert to fraction form
    554,555.60/831,833.19 = 217,754.72/x
  3. Step 3: Cross multiply
    554,555.60x = 831,833.19 × 217,754.72
  4. Step 4: Simplify right side
    554,555.60x = 181,135,603,375.16
  5. Step 5: Solve for x
    x = 181,135,603,375.16/554,555.60
  6. Step 6: Final answer
    x = 326,632.00

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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.