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Finding the Fourth Proportional to 243,379.40, 365,069.10 and 176,505.80

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Solution

The fourth proportional to 243,379.40, 365,069.10 and 176,505.80 is: 264,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,379.40 : 365,069.10 = 176,505.80 : x
  2. Step 2: Convert to fraction form
    243,379.40/365,069.10 = 176,505.80/x
  3. Step 3: Cross multiply
    243,379.40x = 365,069.10 × 176,505.80
  4. Step 4: Simplify right side
    243,379.40x = 64,436,813,550.78
  5. Step 5: Solve for x
    x = 64,436,813,550.78/243,379.40
  6. Step 6: Final answer
    x = 264,758.70

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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.