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Finding the Fourth Proportional to 371,178.90, 512,228.26 and 201,413.04

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Solution

The fourth proportional to 371,178.90, 512,228.26 and 201,413.04 is: 277,950.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,178.90 : 512,228.26 = 201,413.04 : x
  2. Step 2: Convert to fraction form
    371,178.90/512,228.26 = 201,413.04/x
  3. Step 3: Cross multiply
    371,178.90x = 512,228.26 × 201,413.04
  4. Step 4: Simplify right side
    371,178.90x = 103,169,451,020.51
  5. Step 5: Solve for x
    x = 103,169,451,020.51/371,178.90
  6. Step 6: Final answer
    x = 277,950.74

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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.