Home / 640,983.20-884,530.14-350,590.10

Finding the Fourth Proportional to 640,983.20, 884,530.14 and 350,590.10

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Solution

The fourth proportional to 640,983.20, 884,530.14 and 350,590.10 is: 483,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,983.20 : 884,530.14 = 350,590.10 : x
  2. Step 2: Convert to fraction form
    640,983.20/884,530.14 = 350,590.10/x
  3. Step 3: Cross multiply
    640,983.20x = 884,530.14 × 350,590.10
  4. Step 4: Simplify right side
    640,983.20x = 310,107,510,235.61
  5. Step 5: Solve for x
    x = 310,107,510,235.61/640,983.20
  6. Step 6: Final answer
    x = 483,799.75

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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.