Home / 684,405.60-1,026,608.40-185,769.60

Finding the Fourth Proportional to 684,405.60, 1,026,608.40 and 185,769.60

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Solution

The fourth proportional to 684,405.60, 1,026,608.40 and 185,769.60 is: 278,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,405.60 : 1,026,608.40 = 185,769.60 : x
  2. Step 2: Convert to fraction form
    684,405.60/1,026,608.40 = 185,769.60/x
  3. Step 3: Cross multiply
    684,405.60x = 1,026,608.40 × 185,769.60
  4. Step 4: Simplify right side
    684,405.60x = 190,712,631,824.64
  5. Step 5: Solve for x
    x = 190,712,631,824.64/684,405.60
  6. Step 6: Final answer
    x = 278,654.40

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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.