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Finding the Fourth Proportional to 366,918.40, 550,377.60 and 307,869.40

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Solution

The fourth proportional to 366,918.40, 550,377.60 and 307,869.40 is: 461,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,918.40 : 550,377.60 = 307,869.40 : x
  2. Step 2: Convert to fraction form
    366,918.40/550,377.60 = 307,869.40/x
  3. Step 3: Cross multiply
    366,918.40x = 550,377.60 × 307,869.40
  4. Step 4: Simplify right side
    366,918.40x = 169,444,421,485.44
  5. Step 5: Solve for x
    x = 169,444,421,485.44/366,918.40
  6. Step 6: Final answer
    x = 461,804.10

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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.