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Finding the Fourth Proportional to 371,313.62, 512,413.37 and 201,547.90

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Solution

The fourth proportional to 371,313.62, 512,413.37 and 201,547.90 is: 278,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,313.62 : 512,413.37 = 201,547.90 : x
  2. Step 2: Convert to fraction form
    371,313.62/512,413.37 = 201,547.90/x
  3. Step 3: Cross multiply
    371,313.62x = 512,413.37 × 201,547.90
  4. Step 4: Simplify right side
    371,313.62x = 103,275,838,655.42
  5. Step 5: Solve for x
    x = 103,275,838,655.42/371,313.62
  6. Step 6: Final answer
    x = 278,136.41

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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.