Home / 829,897.20-1,244,845.80-409,993.20

Finding the Fourth Proportional to 829,897.20, 1,244,845.80 and 409,993.20

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Solution

The fourth proportional to 829,897.20, 1,244,845.80 and 409,993.20 is: 614,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,897.20 : 1,244,845.80 = 409,993.20 : x
  2. Step 2: Convert to fraction form
    829,897.20/1,244,845.80 = 409,993.20/x
  3. Step 3: Cross multiply
    829,897.20x = 1,244,845.80 × 409,993.20
  4. Step 4: Simplify right side
    829,897.20x = 510,378,313,048.56
  5. Step 5: Solve for x
    x = 510,378,313,048.56/829,897.20
  6. Step 6: Final answer
    x = 614,989.80

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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.