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Finding the Fourth Proportional to 408,017.10, 611,604.45 and 183,485.10

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Solution

The fourth proportional to 408,017.10, 611,604.45 and 183,485.10 is: 275,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,017.10 : 611,604.45 = 183,485.10 : x
  2. Step 2: Convert to fraction form
    408,017.10/611,604.45 = 183,485.10/x
  3. Step 3: Cross multiply
    408,017.10x = 611,604.45 × 183,485.10
  4. Step 4: Simplify right side
    408,017.10x = 112,220,303,668.70
  5. Step 5: Solve for x
    x = 112,220,303,668.70/408,017.10
  6. Step 6: Final answer
    x = 275,038.24

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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.