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Finding the Fourth Proportional to 605,840.60, 908,804.10 and 185,115.80

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Solution

The fourth proportional to 605,840.60, 908,804.10 and 185,115.80 is: 277,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,840.60 : 908,804.10 = 185,115.80 : x
  2. Step 2: Convert to fraction form
    605,840.60/908,804.10 = 185,115.80/x
  3. Step 3: Cross multiply
    605,840.60x = 908,804.10 × 185,115.80
  4. Step 4: Simplify right side
    605,840.60x = 168,233,998,014.78
  5. Step 5: Solve for x
    x = 168,233,998,014.78/605,840.60
  6. Step 6: Final answer
    x = 277,686.90

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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.