Home / 666,876.60-1,000,413.30-193,500.42

Finding the Fourth Proportional to 666,876.60, 1,000,413.30 and 193,500.42

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Solution

The fourth proportional to 666,876.60, 1,000,413.30 and 193,500.42 is: 290,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,876.60 : 1,000,413.30 = 193,500.42 : x
  2. Step 2: Convert to fraction form
    666,876.60/1,000,413.30 = 193,500.42/x
  3. Step 3: Cross multiply
    666,876.60x = 1,000,413.30 × 193,500.42
  4. Step 4: Simplify right side
    666,876.60x = 193,580,393,723.59
  5. Step 5: Solve for x
    x = 193,580,393,723.59/666,876.60
  6. Step 6: Final answer
    x = 290,279.18

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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.