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Finding the Fourth Proportional to 373,398.60, 561,264.30 and 366,400.20

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Solution

The fourth proportional to 373,398.60, 561,264.30 and 366,400.20 is: 550,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,398.60 : 561,264.30 = 366,400.20 : x
  2. Step 2: Convert to fraction form
    373,398.60/561,264.30 = 366,400.20/x
  3. Step 3: Cross multiply
    373,398.60x = 561,264.30 × 366,400.20
  4. Step 4: Simplify right side
    373,398.60x = 205,647,351,772.86
  5. Step 5: Solve for x
    x = 205,647,351,772.86/373,398.60
  6. Step 6: Final answer
    x = 550,744.84

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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.