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Finding the Fourth Proportional to 377,811.80, 566,717.70 and 374,312.60

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Solution

The fourth proportional to 377,811.80, 566,717.70 and 374,312.60 is: 561,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,811.80 : 566,717.70 = 374,312.60 : x
  2. Step 2: Convert to fraction form
    377,811.80/566,717.70 = 374,312.60/x
  3. Step 3: Cross multiply
    377,811.80x = 566,717.70 × 374,312.60
  4. Step 4: Simplify right side
    377,811.80x = 212,129,575,753.02
  5. Step 5: Solve for x
    x = 212,129,575,753.02/377,811.80
  6. Step 6: Final answer
    x = 561,468.90

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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.