Home / 639,799.35-960,289.51-324,477.69

Finding the Fourth Proportional to 639,799.35, 960,289.51 and 324,477.69

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Solution

The fourth proportional to 639,799.35, 960,289.51 and 324,477.69 is: 487,016.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,799.35 : 960,289.51 = 324,477.69 : x
  2. Step 2: Convert to fraction form
    639,799.35/960,289.51 = 324,477.69/x
  3. Step 3: Cross multiply
    639,799.35x = 960,289.51 × 324,477.69
  4. Step 4: Simplify right side
    639,799.35x = 311,592,521,936.03
  5. Step 5: Solve for x
    x = 311,592,521,936.03/639,799.35
  6. Step 6: Final answer
    x = 487,016.00

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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.