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Finding the Fourth Proportional to 614,793.65, 848,413.60 and 342,861.87

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Solution

The fourth proportional to 614,793.65, 848,413.60 and 342,861.87 is: 473,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,793.65 : 848,413.60 = 342,861.87 : x
  2. Step 2: Convert to fraction form
    614,793.65/848,413.60 = 342,861.87/x
  3. Step 3: Cross multiply
    614,793.65x = 848,413.60 × 342,861.87
  4. Step 4: Simplify right side
    614,793.65x = 290,888,672,572.28
  5. Step 5: Solve for x
    x = 290,888,672,572.28/614,793.65
  6. Step 6: Final answer
    x = 473,148.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.