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Finding the Fourth Proportional to 592,663.76, 817,875.91 and 320,731.64

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Solution

The fourth proportional to 592,663.76, 817,875.91 and 320,731.64 is: 442,609.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,663.76 : 817,875.91 = 320,731.64 : x
  2. Step 2: Convert to fraction form
    592,663.76/817,875.91 = 320,731.64/x
  3. Step 3: Cross multiply
    592,663.76x = 817,875.91 × 320,731.64
  4. Step 4: Simplify right side
    592,663.76x = 262,318,681,930.79
  5. Step 5: Solve for x
    x = 262,318,681,930.79/592,663.76
  6. Step 6: Final answer
    x = 442,609.62

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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.