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Finding the Fourth Proportional to 383,737.80, 575,606.70 and 304,422.60

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Solution

The fourth proportional to 383,737.80, 575,606.70 and 304,422.60 is: 456,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,737.80 : 575,606.70 = 304,422.60 : x
  2. Step 2: Convert to fraction form
    383,737.80/575,606.70 = 304,422.60/x
  3. Step 3: Cross multiply
    383,737.80x = 575,606.70 × 304,422.60
  4. Step 4: Simplify right side
    383,737.80x = 175,227,688,191.42
  5. Step 5: Solve for x
    x = 175,227,688,191.42/383,737.80
  6. Step 6: Final answer
    x = 456,633.90

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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.