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Finding the Fourth Proportional to 318,797.88, 439,894.55 and 180,955.38

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Solution

The fourth proportional to 318,797.88, 439,894.55 and 180,955.38 is: 249,692.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,797.88 : 439,894.55 = 180,955.38 : x
  2. Step 2: Convert to fraction form
    318,797.88/439,894.55 = 180,955.38/x
  3. Step 3: Cross multiply
    318,797.88x = 439,894.55 × 180,955.38
  4. Step 4: Simplify right side
    318,797.88x = 79,601,284,550.40
  5. Step 5: Solve for x
    x = 79,601,284,550.40/318,797.88
  6. Step 6: Final answer
    x = 249,692.01

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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.