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Finding the Fourth Proportional to 592,302.11, 817,373.84 and 320,369.72

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Solution

The fourth proportional to 592,302.11, 817,373.84 and 320,369.72 is: 442,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,302.11 : 817,373.84 = 320,369.72 : x
  2. Step 2: Convert to fraction form
    592,302.11/817,373.84 = 320,369.72/x
  3. Step 3: Cross multiply
    592,302.11x = 817,373.84 × 320,369.72
  4. Step 4: Simplify right side
    592,302.11x = 261,861,822,567.41
  5. Step 5: Solve for x
    x = 261,861,822,567.41/592,302.11
  6. Step 6: Final answer
    x = 442,108.55

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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.