Home / 830,036.60-1,246,221.30-515,108.60

Finding the Fourth Proportional to 830,036.60, 1,246,221.30 and 515,108.60

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Solution

The fourth proportional to 830,036.60, 1,246,221.30 and 515,108.60 is: 773,386.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,036.60 : 1,246,221.30 = 515,108.60 : x
  2. Step 2: Convert to fraction form
    830,036.60/1,246,221.30 = 515,108.60/x
  3. Step 3: Cross multiply
    830,036.60x = 1,246,221.30 × 515,108.60
  4. Step 4: Simplify right side
    830,036.60x = 641,939,309,133.18
  5. Step 5: Solve for x
    x = 641,939,309,133.18/830,036.60
  6. Step 6: Final answer
    x = 773,386.75

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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.