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Finding the Fourth Proportional to 592,639.84, 817,842.96 and 320,707.73

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Solution

The fourth proportional to 592,639.84, 817,842.96 and 320,707.73 is: 442,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,639.84 : 817,842.96 = 320,707.73 : x
  2. Step 2: Convert to fraction form
    592,639.84/817,842.96 = 320,707.73/x
  3. Step 3: Cross multiply
    592,639.84x = 817,842.96 × 320,707.73
  4. Step 4: Simplify right side
    592,639.84x = 262,288,561,242.69
  5. Step 5: Solve for x
    x = 262,288,561,242.69/592,639.84
  6. Step 6: Final answer
    x = 442,576.66

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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.