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Finding the Fourth Proportional to 366,904.20, 550,356.30 and 307,855.20

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Solution

The fourth proportional to 366,904.20, 550,356.30 and 307,855.20 is: 461,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,904.20 : 550,356.30 = 307,855.20 : x
  2. Step 2: Convert to fraction form
    366,904.20/550,356.30 = 307,855.20/x
  3. Step 3: Cross multiply
    366,904.20x = 550,356.30 × 307,855.20
  4. Step 4: Simplify right side
    366,904.20x = 169,430,048,807.76
  5. Step 5: Solve for x
    x = 169,430,048,807.76/366,904.20
  6. Step 6: Final answer
    x = 461,782.80

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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.