Home / 684,601.20-1,026,901.80-185,965.20

Finding the Fourth Proportional to 684,601.20, 1,026,901.80 and 185,965.20

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Solution

The fourth proportional to 684,601.20, 1,026,901.80 and 185,965.20 is: 278,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,601.20 : 1,026,901.80 = 185,965.20 : x
  2. Step 2: Convert to fraction form
    684,601.20/1,026,901.80 = 185,965.20/x
  3. Step 3: Cross multiply
    684,601.20x = 1,026,901.80 × 185,965.20
  4. Step 4: Simplify right side
    684,601.20x = 190,967,998,617.36
  5. Step 5: Solve for x
    x = 190,967,998,617.36/684,601.20
  6. Step 6: Final answer
    x = 278,947.80

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Double scale
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Similar ratio
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1.5x scale

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.