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Finding the Fourth Proportional to 592,401.61, 817,511.77 and 320,468.86

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Solution

The fourth proportional to 592,401.61, 817,511.77 and 320,468.86 is: 442,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,401.61 : 817,511.77 = 320,468.86 : x
  2. Step 2: Convert to fraction form
    592,401.61/817,511.77 = 320,468.86/x
  3. Step 3: Cross multiply
    592,401.61x = 817,511.77 × 320,468.86
  4. Step 4: Simplify right side
    592,401.61x = 261,987,064,968.48
  5. Step 5: Solve for x
    x = 261,987,064,968.48/592,401.61
  6. Step 6: Final answer
    x = 442,245.70

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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.