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Finding the Fourth Proportional to 413,575.40, 620,363.10 and 376,833.80

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Solution

The fourth proportional to 413,575.40, 620,363.10 and 376,833.80 is: 565,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,575.40 : 620,363.10 = 376,833.80 : x
  2. Step 2: Convert to fraction form
    413,575.40/620,363.10 = 376,833.80/x
  3. Step 3: Cross multiply
    413,575.40x = 620,363.10 × 376,833.80
  4. Step 4: Simplify right side
    413,575.40x = 233,773,784,352.78
  5. Step 5: Solve for x
    x = 233,773,784,352.78/413,575.40
  6. Step 6: Final answer
    x = 565,250.70

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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.