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Finding the Fourth Proportional to 373,321.80, 559,982.70 and 255,223.80

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Solution

The fourth proportional to 373,321.80, 559,982.70 and 255,223.80 is: 382,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,321.80 : 559,982.70 = 255,223.80 : x
  2. Step 2: Convert to fraction form
    373,321.80/559,982.70 = 255,223.80/x
  3. Step 3: Cross multiply
    373,321.80x = 559,982.70 × 255,223.80
  4. Step 4: Simplify right side
    373,321.80x = 142,920,912,628.26
  5. Step 5: Solve for x
    x = 142,920,912,628.26/373,321.80
  6. Step 6: Final answer
    x = 382,835.70

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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.