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Finding the Fourth Proportional to 382,591.20, 573,886.80 and 364,220.40

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Solution

The fourth proportional to 382,591.20, 573,886.80 and 364,220.40 is: 546,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,591.20 : 573,886.80 = 364,220.40 : x
  2. Step 2: Convert to fraction form
    382,591.20/573,886.80 = 364,220.40/x
  3. Step 3: Cross multiply
    382,591.20x = 573,886.80 × 364,220.40
  4. Step 4: Simplify right side
    382,591.20x = 209,021,279,850.72
  5. Step 5: Solve for x
    x = 209,021,279,850.72/382,591.20
  6. Step 6: Final answer
    x = 546,330.60

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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.