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Finding the Fourth Proportional to 1,295,608.37, 1,787,934.58 and 714,867.68

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Solution

The fourth proportional to 1,295,608.37, 1,787,934.58 and 714,867.68 is: 986,514.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,608.37 : 1,787,934.58 = 714,867.68 : x
  2. Step 2: Convert to fraction form
    1,295,608.37/1,787,934.58 = 714,867.68/x
  3. Step 3: Cross multiply
    1,295,608.37x = 1,787,934.58 × 714,867.68
  4. Step 4: Simplify right side
    1,295,608.37x = 1,278,136,641,843.04
  5. Step 5: Solve for x
    x = 1,278,136,641,843.04/1,295,608.37
  6. Step 6: Final answer
    x = 986,514.66

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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.