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Finding the Fourth Proportional to 366,907.40, 549,842.70 and 255,969.80

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Solution

The fourth proportional to 366,907.40, 549,842.70 and 255,969.80 is: 383,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,907.40 : 549,842.70 = 255,969.80 : x
  2. Step 2: Convert to fraction form
    366,907.40/549,842.70 = 255,969.80/x
  3. Step 3: Cross multiply
    366,907.40x = 549,842.70 × 255,969.80
  4. Step 4: Simplify right side
    366,907.40x = 140,743,125,950.46
  5. Step 5: Solve for x
    x = 140,743,125,950.46/366,907.40
  6. Step 6: Final answer
    x = 383,593.04

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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.