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Finding the Fourth Proportional to 267,969.49, 401,428.73 and 155,413.31

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Solution

The fourth proportional to 267,969.49, 401,428.73 and 155,413.31 is: 232,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,969.49 : 401,428.73 = 155,413.31 : x
  2. Step 2: Convert to fraction form
    267,969.49/401,428.73 = 155,413.31/x
  3. Step 3: Cross multiply
    267,969.49x = 401,428.73 × 155,413.31
  4. Step 4: Simplify right side
    267,969.49x = 62,387,366,039.79
  5. Step 5: Solve for x
    x = 62,387,366,039.79/267,969.49
  6. Step 6: Final answer
    x = 232,815.19

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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.