Home / 684,359.17-944,421.77-378,456.25

Finding the Fourth Proportional to 684,359.17, 944,421.77 and 378,456.25

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Solution

The fourth proportional to 684,359.17, 944,421.77 and 378,456.25 is: 522,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,359.17 : 944,421.77 = 378,456.25 : x
  2. Step 2: Convert to fraction form
    684,359.17/944,421.77 = 378,456.25/x
  3. Step 3: Cross multiply
    684,359.17x = 944,421.77 × 378,456.25
  4. Step 4: Simplify right side
    684,359.17x = 357,422,321,492.56
  5. Step 5: Solve for x
    x = 357,422,321,492.56/684,359.17
  6. Step 6: Final answer
    x = 522,273.01

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.