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Finding the Fourth Proportional to 617,041.19, 925,448.29 and 280,000.80

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Solution

The fourth proportional to 617,041.19, 925,448.29 and 280,000.80 is: 419,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,041.19 : 925,448.29 = 280,000.80 : x
  2. Step 2: Convert to fraction form
    617,041.19/925,448.29 = 280,000.80/x
  3. Step 3: Cross multiply
    617,041.19x = 925,448.29 × 280,000.80
  4. Step 4: Simplify right side
    617,041.19x = 259,126,260,858.63
  5. Step 5: Solve for x
    x = 259,126,260,858.63/617,041.19
  6. Step 6: Final answer
    x = 419,949.70

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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.