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Finding the Fourth Proportional to 441,215.32, 661,593.98 and 216,477.40

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Solution

The fourth proportional to 441,215.32, 661,593.98 and 216,477.40 is: 324,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,215.32 : 661,593.98 = 216,477.40 : x
  2. Step 2: Convert to fraction form
    441,215.32/661,593.98 = 216,477.40/x
  3. Step 3: Cross multiply
    441,215.32x = 661,593.98 × 216,477.40
  4. Step 4: Simplify right side
    441,215.32x = 143,220,144,646.05
  5. Step 5: Solve for x
    x = 143,220,144,646.05/441,215.32
  6. Step 6: Final answer
    x = 324,603.74

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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.