Home / 809,052.30-1,214,890.65-585,978.30

Finding the Fourth Proportional to 809,052.30, 1,214,890.65 and 585,978.30

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Solution

The fourth proportional to 809,052.30, 1,214,890.65 and 585,978.30 is: 879,917.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,052.30 : 1,214,890.65 = 585,978.30 : x
  2. Step 2: Convert to fraction form
    809,052.30/1,214,890.65 = 585,978.30/x
  3. Step 3: Cross multiply
    809,052.30x = 1,214,890.65 × 585,978.30
  4. Step 4: Simplify right side
    809,052.30x = 711,899,557,772.90
  5. Step 5: Solve for x
    x = 711,899,557,772.90/809,052.30
  6. Step 6: Final answer
    x = 879,917.85

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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.