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Finding the Fourth Proportional to 1,260,947.80, 1,888,311.30 and 837,933.40

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Solution

The fourth proportional to 1,260,947.80, 1,888,311.30 and 837,933.40 is: 1,254,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,947.80 : 1,888,311.30 = 837,933.40 : x
  2. Step 2: Convert to fraction form
    1,260,947.80/1,888,311.30 = 837,933.40/x
  3. Step 3: Cross multiply
    1,260,947.80x = 1,888,311.30 × 837,933.40
  4. Step 4: Simplify right side
    1,260,947.80x = 1,582,279,107,867.42
  5. Step 5: Solve for x
    x = 1,582,279,107,867.42/1,260,947.80
  6. Step 6: Final answer
    x = 1,254,833.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.