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Finding the Fourth Proportional to 640,889.36, 961,336.14 and 241,422.92

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Solution

The fourth proportional to 640,889.36, 961,336.14 and 241,422.92 is: 362,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,889.36 : 961,336.14 = 241,422.92 : x
  2. Step 2: Convert to fraction form
    640,889.36/961,336.14 = 241,422.92/x
  3. Step 3: Cross multiply
    640,889.36x = 961,336.14 × 241,422.92
  4. Step 4: Simplify right side
    640,889.36x = 232,088,578,020.33
  5. Step 5: Solve for x
    x = 232,088,578,020.33/640,889.36
  6. Step 6: Final answer
    x = 362,135.17

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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.