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Finding the Fourth Proportional to 373,348.20, 561,404.70 and 312,522.60

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Solution

The fourth proportional to 373,348.20, 561,404.70 and 312,522.60 is: 469,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,348.20 : 561,404.70 = 312,522.60 : x
  2. Step 2: Convert to fraction form
    373,348.20/561,404.70 = 312,522.60/x
  3. Step 3: Cross multiply
    373,348.20x = 561,404.70 × 312,522.60
  4. Step 4: Simplify right side
    373,348.20x = 175,451,656,496.22
  5. Step 5: Solve for x
    x = 175,451,656,496.22/373,348.20
  6. Step 6: Final answer
    x = 469,941.08

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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.