Home / 830,028.60-1,246,209.30-515,100.60

Finding the Fourth Proportional to 830,028.60, 1,246,209.30 and 515,100.60

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Solution

The fourth proportional to 830,028.60, 1,246,209.30 and 515,100.60 is: 773,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,028.60 : 1,246,209.30 = 515,100.60 : x
  2. Step 2: Convert to fraction form
    830,028.60/1,246,209.30 = 515,100.60/x
  3. Step 3: Cross multiply
    830,028.60x = 1,246,209.30 × 515,100.60
  4. Step 4: Simplify right side
    830,028.60x = 641,923,158,155.58
  5. Step 5: Solve for x
    x = 641,923,158,155.58/830,028.60
  6. Step 6: Final answer
    x = 773,374.75

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Double scale
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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.