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Finding the Fourth Proportional to 292,378.28, 403,413.56 and 171,513.32

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Solution

The fourth proportional to 292,378.28, 403,413.56 and 171,513.32 is: 236,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,378.28 : 403,413.56 = 171,513.32 : x
  2. Step 2: Convert to fraction form
    292,378.28/403,413.56 = 171,513.32/x
  3. Step 3: Cross multiply
    292,378.28x = 403,413.56 × 171,513.32
  4. Step 4: Simplify right side
    292,378.28x = 69,190,799,008.62
  5. Step 5: Solve for x
    x = 69,190,799,008.62/292,378.28
  6. Step 6: Final answer
    x = 236,648.22

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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.