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Finding the Fourth Proportional to 592,308.86, 817,383.15 and 320,376.47

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Solution

The fourth proportional to 592,308.86, 817,383.15 and 320,376.47 is: 442,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,308.86 : 817,383.15 = 320,376.47 : x
  2. Step 2: Convert to fraction form
    592,308.86/817,383.15 = 320,376.47/x
  3. Step 3: Cross multiply
    592,308.86x = 817,383.15 × 320,376.47
  4. Step 4: Simplify right side
    592,308.86x = 261,870,324,147.57
  5. Step 5: Solve for x
    x = 261,870,324,147.57/592,308.86
  6. Step 6: Final answer
    x = 442,117.86

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1.5x scale

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.