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Finding the Fourth Proportional to 363,834.30, 545,751.45 and 127,200.90

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Solution

The fourth proportional to 363,834.30, 545,751.45 and 127,200.90 is: 190,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,834.30 : 545,751.45 = 127,200.90 : x
  2. Step 2: Convert to fraction form
    363,834.30/545,751.45 = 127,200.90/x
  3. Step 3: Cross multiply
    363,834.30x = 545,751.45 × 127,200.90
  4. Step 4: Simplify right side
    363,834.30x = 69,420,075,616.31
  5. Step 5: Solve for x
    x = 69,420,075,616.31/363,834.30
  6. Step 6: Final answer
    x = 190,801.35

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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.