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Finding the Fourth Proportional to 503,068.65, 694,234.23 and 288,209.57

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Solution

The fourth proportional to 503,068.65, 694,234.23 and 288,209.57 is: 397,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,068.65 : 694,234.23 = 288,209.57 : x
  2. Step 2: Convert to fraction form
    503,068.65/694,234.23 = 288,209.57/x
  3. Step 3: Cross multiply
    503,068.65x = 694,234.23 × 288,209.57
  4. Step 4: Simplify right side
    503,068.65x = 200,084,945,436.41
  5. Step 5: Solve for x
    x = 200,084,945,436.41/503,068.65
  6. Step 6: Final answer
    x = 397,728.91

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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.