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Finding the Fourth Proportional to 440,547.43, 660,148.34 and 327,681.83

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Solution

The fourth proportional to 440,547.43, 660,148.34 and 327,681.83 is: 491,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,547.43 : 660,148.34 = 327,681.83 : x
  2. Step 2: Convert to fraction form
    440,547.43/660,148.34 = 327,681.83/x
  3. Step 3: Cross multiply
    440,547.43x = 660,148.34 × 327,681.83
  4. Step 4: Simplify right side
    440,547.43x = 216,318,616,122.66
  5. Step 5: Solve for x
    x = 216,318,616,122.66/440,547.43
  6. Step 6: Final answer
    x = 491,022.31

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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.