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Finding the Fourth Proportional to 583,243.13, 805,101.22 and 455,959.73

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Solution

The fourth proportional to 583,243.13, 805,101.22 and 455,959.73 is: 629,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,243.13 : 805,101.22 = 455,959.73 : x
  2. Step 2: Convert to fraction form
    583,243.13/805,101.22 = 455,959.73/x
  3. Step 3: Cross multiply
    583,243.13x = 805,101.22 × 455,959.73
  4. Step 4: Simplify right side
    583,243.13x = 367,093,737,476.57
  5. Step 5: Solve for x
    x = 367,093,737,476.57/583,243.13
  6. Step 6: Final answer
    x = 629,400.87

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Double scale
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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.