Home / 1,079,073.60-1,618,610.40-519,201.60

Finding the Fourth Proportional to 1,079,073.60, 1,618,610.40 and 519,201.60

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Solution

The fourth proportional to 1,079,073.60, 1,618,610.40 and 519,201.60 is: 778,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,073.60 : 1,618,610.40 = 519,201.60 : x
  2. Step 2: Convert to fraction form
    1,079,073.60/1,618,610.40 = 519,201.60/x
  3. Step 3: Cross multiply
    1,079,073.60x = 1,618,610.40 × 519,201.60
  4. Step 4: Simplify right side
    1,079,073.60x = 840,385,109,456.64
  5. Step 5: Solve for x
    x = 840,385,109,456.64/1,079,073.60
  6. Step 6: Final answer
    x = 778,802.40

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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.