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Finding the Fourth Proportional to 381,493.60, 573,622.80 and 373,199.20

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Solution

The fourth proportional to 381,493.60, 573,622.80 and 373,199.20 is: 561,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,493.60 : 573,622.80 = 373,199.20 : x
  2. Step 2: Convert to fraction form
    381,493.60/573,622.80 = 373,199.20/x
  3. Step 3: Cross multiply
    381,493.60x = 573,622.80 × 373,199.20
  4. Step 4: Simplify right side
    381,493.60x = 214,075,570,061.76
  5. Step 5: Solve for x
    x = 214,075,570,061.76/381,493.60
  6. Step 6: Final answer
    x = 561,151.14

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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.