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Finding the Fourth Proportional to 318,535.57, 439,579.15 and 175,295.61

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Solution

The fourth proportional to 318,535.57, 439,579.15 and 175,295.61 is: 241,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,535.57 : 439,579.15 = 175,295.61 : x
  2. Step 2: Convert to fraction form
    318,535.57/439,579.15 = 175,295.61/x
  3. Step 3: Cross multiply
    318,535.57x = 439,579.15 × 175,295.61
  4. Step 4: Simplify right side
    318,535.57x = 77,056,295,242.53
  5. Step 5: Solve for x
    x = 77,056,295,242.53/318,535.57
  6. Step 6: Final answer
    x = 241,907.98

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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.