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Finding the Fourth Proportional to 602,808.15, 832,565.66 and 396,996.57

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Solution

The fourth proportional to 602,808.15, 832,565.66 and 396,996.57 is: 548,309.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,808.15 : 832,565.66 = 396,996.57 : x
  2. Step 2: Convert to fraction form
    602,808.15/832,565.66 = 396,996.57/x
  3. Step 3: Cross multiply
    602,808.15x = 832,565.66 × 396,996.57
  4. Step 4: Simplify right side
    602,808.15x = 330,525,707,156.96
  5. Step 5: Solve for x
    x = 330,525,707,156.96/602,808.15
  6. Step 6: Final answer
    x = 548,309.95

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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.