Home / 1,234,817.12-1,852,287.79-393,434.48

Finding the Fourth Proportional to 1,234,817.12, 1,852,287.79 and 393,434.48

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Solution

The fourth proportional to 1,234,817.12, 1,852,287.79 and 393,434.48 is: 590,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,817.12 : 1,852,287.79 = 393,434.48 : x
  2. Step 2: Convert to fraction form
    1,234,817.12/1,852,287.79 = 393,434.48/x
  3. Step 3: Cross multiply
    1,234,817.12x = 1,852,287.79 × 393,434.48
  4. Step 4: Simplify right side
    1,234,817.12x = 728,753,873,223.97
  5. Step 5: Solve for x
    x = 728,753,873,223.97/1,234,817.12
  6. Step 6: Final answer
    x = 590,171.50

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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.