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Finding the Fourth Proportional to 531,878.40, 733,957.20 and 327,904.20

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Solution

The fourth proportional to 531,878.40, 733,957.20 and 327,904.20 is: 452,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,878.40 : 733,957.20 = 327,904.20 : x
  2. Step 2: Convert to fraction form
    531,878.40/733,957.20 = 327,904.20/x
  3. Step 3: Cross multiply
    531,878.40x = 733,957.20 × 327,904.20
  4. Step 4: Simplify right side
    531,878.40x = 240,667,648,500.24
  5. Step 5: Solve for x
    x = 240,667,648,500.24/531,878.40
  6. Step 6: Final answer
    x = 452,486.22

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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.