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Finding the Fourth Proportional to 656,899.93, 906,552.96 and 370,413.86

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Solution

The fourth proportional to 656,899.93, 906,552.96 and 370,413.86 is: 511,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,899.93 : 906,552.96 = 370,413.86 : x
  2. Step 2: Convert to fraction form
    656,899.93/906,552.96 = 370,413.86/x
  3. Step 3: Cross multiply
    656,899.93x = 906,552.96 × 370,413.86
  4. Step 4: Simplify right side
    656,899.93x = 335,799,782,469.15
  5. Step 5: Solve for x
    x = 335,799,782,469.15/656,899.93
  6. Step 6: Final answer
    x = 511,188.64

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1.5x scale

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.