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Finding the Fourth Proportional to 592,641.97, 817,845.89 and 320,709.86

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Solution

The fourth proportional to 592,641.97, 817,845.89 and 320,709.86 is: 442,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,641.97 : 817,845.89 = 320,709.86 : x
  2. Step 2: Convert to fraction form
    592,641.97/817,845.89 = 320,709.86/x
  3. Step 3: Cross multiply
    592,641.97x = 817,845.89 × 320,709.86
  4. Step 4: Simplify right side
    592,641.97x = 262,291,240,883.48
  5. Step 5: Solve for x
    x = 262,291,240,883.48/592,641.97
  6. Step 6: Final answer
    x = 442,579.59

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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.