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Finding the Fourth Proportional to 656,220.96, 984,413.52 and 256,810.14

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Solution

The fourth proportional to 656,220.96, 984,413.52 and 256,810.14 is: 385,247.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,220.96 : 984,413.52 = 256,810.14 : x
  2. Step 2: Convert to fraction form
    656,220.96/984,413.52 = 256,810.14/x
  3. Step 3: Cross multiply
    656,220.96x = 984,413.52 × 256,810.14
  4. Step 4: Simplify right side
    656,220.96x = 252,807,373,889.09
  5. Step 5: Solve for x
    x = 252,807,373,889.09/656,220.96
  6. Step 6: Final answer
    x = 385,247.33

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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.