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Finding the Fourth Proportional to 552,582.81, 762,285.15 and 322,990.11

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Solution

The fourth proportional to 552,582.81, 762,285.15 and 322,990.11 is: 445,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,582.81 : 762,285.15 = 322,990.11 : x
  2. Step 2: Convert to fraction form
    552,582.81/762,285.15 = 322,990.11/x
  3. Step 3: Cross multiply
    552,582.81x = 762,285.15 × 322,990.11
  4. Step 4: Simplify right side
    552,582.81x = 246,210,564,449.87
  5. Step 5: Solve for x
    x = 246,210,564,449.87/552,582.81
  6. Step 6: Final answer
    x = 445,563.20

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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.