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Finding the Fourth Proportional to 493,981.36, 681,690 and 267,626.32

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Solution

The fourth proportional to 493,981.36, 681,690 and 267,626.32 is: 369,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,981.36 : 681,690 = 267,626.32 : x
  2. Step 2: Convert to fraction form
    493,981.36/681,690 = 267,626.32/x
  3. Step 3: Cross multiply
    493,981.36x = 681,690 × 267,626.32
  4. Step 4: Simplify right side
    493,981.36x = 182,438,186,080.80
  5. Step 5: Solve for x
    x = 182,438,186,080.80/493,981.36
  6. Step 6: Final answer
    x = 369,322.00

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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.