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Finding the Fourth Proportional to 592,640.84, 817,844.34 and 320,708.73

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Solution

The fourth proportional to 592,640.84, 817,844.34 and 320,708.73 is: 442,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,640.84 : 817,844.34 = 320,708.73 : x
  2. Step 2: Convert to fraction form
    592,640.84/817,844.34 = 320,708.73/x
  3. Step 3: Cross multiply
    592,640.84x = 817,844.34 × 320,708.73
  4. Step 4: Simplify right side
    592,640.84x = 262,289,819,619.09
  5. Step 5: Solve for x
    x = 262,289,819,619.09/592,640.84
  6. Step 6: Final answer
    x = 442,578.04

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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.