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Finding the Fourth Proportional to 624,423.40, 937,499.10 and 401,165.80

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Solution

The fourth proportional to 624,423.40, 937,499.10 and 401,165.80 is: 602,303.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,423.40 : 937,499.10 = 401,165.80 : x
  2. Step 2: Convert to fraction form
    624,423.40/937,499.10 = 401,165.80/x
  3. Step 3: Cross multiply
    624,423.40x = 937,499.10 × 401,165.80
  4. Step 4: Simplify right side
    624,423.40x = 376,092,576,450.78
  5. Step 5: Solve for x
    x = 376,092,576,450.78/624,423.40
  6. Step 6: Final answer
    x = 602,303.78

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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.