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Finding the Fourth Proportional to 339,790.80, 468,870.48 and 186,803.76

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Solution

The fourth proportional to 339,790.80, 468,870.48 and 186,803.76 is: 257,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,790.80 : 468,870.48 = 186,803.76 : x
  2. Step 2: Convert to fraction form
    339,790.80/468,870.48 = 186,803.76/x
  3. Step 3: Cross multiply
    339,790.80x = 468,870.48 × 186,803.76
  4. Step 4: Simplify right side
    339,790.80x = 87,586,768,617.00
  5. Step 5: Solve for x
    x = 87,586,768,617.00/339,790.80
  6. Step 6: Final answer
    x = 257,766.75

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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.