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Finding the Fourth Proportional to 408,017.60, 611,605.20 and 183,485.60

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Solution

The fourth proportional to 408,017.60, 611,605.20 and 183,485.60 is: 275,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,017.60 : 611,605.20 = 183,485.60 : x
  2. Step 2: Convert to fraction form
    408,017.60/611,605.20 = 183,485.60/x
  3. Step 3: Cross multiply
    408,017.60x = 611,605.20 × 183,485.60
  4. Step 4: Simplify right side
    408,017.60x = 112,220,747,085.12
  5. Step 5: Solve for x
    x = 112,220,747,085.12/408,017.60
  6. Step 6: Final answer
    x = 275,038.99

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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.