Home / 926,382.96-1,278,226.80-518,502.60

Finding the Fourth Proportional to 926,382.96, 1,278,226.80 and 518,502.60

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Solution

The fourth proportional to 926,382.96, 1,278,226.80 and 518,502.60 is: 715,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,382.96 : 1,278,226.80 = 518,502.60 : x
  2. Step 2: Convert to fraction form
    926,382.96/1,278,226.80 = 518,502.60/x
  3. Step 3: Cross multiply
    926,382.96x = 1,278,226.80 × 518,502.60
  4. Step 4: Simplify right side
    926,382.96x = 662,763,919,189.68
  5. Step 5: Solve for x
    x = 662,763,919,189.68/926,382.96
  6. Step 6: Final answer
    x = 715,431.90

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.