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Finding the Fourth Proportional to 592,663.85, 817,878.15 and 320,731.67

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Solution

The fourth proportional to 592,663.85, 817,878.15 and 320,731.67 is: 442,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,663.85 : 817,878.15 = 320,731.67 : x
  2. Step 2: Convert to fraction form
    592,663.85/817,878.15 = 320,731.67/x
  3. Step 3: Cross multiply
    592,663.85x = 817,878.15 × 320,731.67
  4. Step 4: Simplify right side
    592,663.85x = 262,319,420,816.62
  5. Step 5: Solve for x
    x = 262,319,420,816.62/592,663.85
  6. Step 6: Final answer
    x = 442,610.80

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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.