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Finding the Fourth Proportional to 403,360.60, 605,040.90 and 226,413.40

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Solution

The fourth proportional to 403,360.60, 605,040.90 and 226,413.40 is: 339,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,360.60 : 605,040.90 = 226,413.40 : x
  2. Step 2: Convert to fraction form
    403,360.60/605,040.90 = 226,413.40/x
  3. Step 3: Cross multiply
    403,360.60x = 605,040.90 × 226,413.40
  4. Step 4: Simplify right side
    403,360.60x = 136,989,367,308.06
  5. Step 5: Solve for x
    x = 136,989,367,308.06/403,360.60
  6. Step 6: Final answer
    x = 339,620.10

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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.