Home / 684,400.26-1,026,600.40-185,764.26

Finding the Fourth Proportional to 684,400.26, 1,026,600.40 and 185,764.26

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Solution

The fourth proportional to 684,400.26, 1,026,600.40 and 185,764.26 is: 278,646.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,400.26 : 1,026,600.40 = 185,764.26 : x
  2. Step 2: Convert to fraction form
    684,400.26/1,026,600.40 = 185,764.26/x
  3. Step 3: Cross multiply
    684,400.26x = 1,026,600.40 × 185,764.26
  4. Step 4: Simplify right side
    684,400.26x = 190,705,663,621.70
  5. Step 5: Solve for x
    x = 190,705,663,621.70/684,400.26
  6. Step 6: Final answer
    x = 278,646.39

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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.