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Finding the Fourth Proportional to 408,069.10, 612,304.80 and 183,588.40

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Solution

The fourth proportional to 408,069.10, 612,304.80 and 183,588.40 is: 275,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,069.10 : 612,304.80 = 183,588.40 : x
  2. Step 2: Convert to fraction form
    408,069.10/612,304.80 = 183,588.40/x
  3. Step 3: Cross multiply
    408,069.10x = 612,304.80 × 183,588.40
  4. Step 4: Simplify right side
    408,069.10x = 112,412,058,544.32
  5. Step 5: Solve for x
    x = 112,412,058,544.32/408,069.10
  6. Step 6: Final answer
    x = 275,473.10

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1.5x scale

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.