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Finding the Fourth Proportional to 408,323.40, 612,047.70 and 183,645.60

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Solution

The fourth proportional to 408,323.40, 612,047.70 and 183,645.60 is: 275,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,323.40 : 612,047.70 = 183,645.60 : x
  2. Step 2: Convert to fraction form
    408,323.40/612,047.70 = 183,645.60/x
  3. Step 3: Cross multiply
    408,323.40x = 612,047.70 × 183,645.60
  4. Step 4: Simplify right side
    408,323.40x = 112,399,867,095.12
  5. Step 5: Solve for x
    x = 112,399,867,095.12/408,323.40
  6. Step 6: Final answer
    x = 275,271.68

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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.