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Finding the Fourth Proportional to 691,500.76, 954,267.50 and 401,171.04

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Solution

The fourth proportional to 691,500.76, 954,267.50 and 401,171.04 is: 553,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,500.76 : 954,267.50 = 401,171.04 : x
  2. Step 2: Convert to fraction form
    691,500.76/954,267.50 = 401,171.04/x
  3. Step 3: Cross multiply
    691,500.76x = 954,267.50 × 401,171.04
  4. Step 4: Simplify right side
    691,500.76x = 382,824,485,413.20
  5. Step 5: Solve for x
    x = 382,824,485,413.20/691,500.76
  6. Step 6: Final answer
    x = 553,613.98

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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.