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Finding the Fourth Proportional to 819,843.54, 1,221,614.97 and 730,409.82

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Solution

The fourth proportional to 819,843.54, 1,221,614.97 and 730,409.82 is: 1,088,353.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,843.54 : 1,221,614.97 = 730,409.82 : x
  2. Step 2: Convert to fraction form
    819,843.54/1,221,614.97 = 730,409.82/x
  3. Step 3: Cross multiply
    819,843.54x = 1,221,614.97 × 730,409.82
  4. Step 4: Simplify right side
    819,843.54x = 892,279,570,347.01
  5. Step 5: Solve for x
    x = 892,279,570,347.01/819,843.54
  6. Step 6: Final answer
    x = 1,088,353.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.