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Finding the Fourth Proportional to 404,775.40, 605,607.90 and 264,807.40

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Solution

The fourth proportional to 404,775.40, 605,607.90 and 264,807.40 is: 396,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,775.40 : 605,607.90 = 264,807.40 : x
  2. Step 2: Convert to fraction form
    404,775.40/605,607.90 = 264,807.40/x
  3. Step 3: Cross multiply
    404,775.40x = 605,607.90 × 264,807.40
  4. Step 4: Simplify right side
    404,775.40x = 160,369,453,418.46
  5. Step 5: Solve for x
    x = 160,369,453,418.46/404,775.40
  6. Step 6: Final answer
    x = 396,193.68

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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.