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Finding the Fourth Proportional to 408,055.10, 612,283.80 and 183,574.40

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Solution

The fourth proportional to 408,055.10, 612,283.80 and 183,574.40 is: 275,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,055.10 : 612,283.80 = 183,574.40 : x
  2. Step 2: Convert to fraction form
    408,055.10/612,283.80 = 183,574.40/x
  3. Step 3: Cross multiply
    408,055.10x = 612,283.80 × 183,574.40
  4. Step 4: Simplify right side
    408,055.10x = 112,399,631,214.72
  5. Step 5: Solve for x
    x = 112,399,631,214.72/408,055.10
  6. Step 6: Final answer
    x = 275,452.09

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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.