Home / 684,309.70-1,026,464.55-185,673.70

Finding the Fourth Proportional to 684,309.70, 1,026,464.55 and 185,673.70

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Solution

The fourth proportional to 684,309.70, 1,026,464.55 and 185,673.70 is: 278,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,309.70 : 1,026,464.55 = 185,673.70 : x
  2. Step 2: Convert to fraction form
    684,309.70/1,026,464.55 = 185,673.70/x
  3. Step 3: Cross multiply
    684,309.70x = 1,026,464.55 × 185,673.70
  4. Step 4: Simplify right side
    684,309.70x = 190,587,470,917.34
  5. Step 5: Solve for x
    x = 190,587,470,917.34/684,309.70
  6. Step 6: Final answer
    x = 278,510.55

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Half scale
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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.