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Finding the Fourth Proportional to 640,899, 961,512.66 and 241,543.08

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Solution

The fourth proportional to 640,899, 961,512.66 and 241,543.08 is: 362,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,899 : 961,512.66 = 241,543.08 : x
  2. Step 2: Convert to fraction form
    640,899/961,512.66 = 241,543.08/x
  3. Step 3: Cross multiply
    640,899x = 961,512.66 × 241,543.08
  4. Step 4: Simplify right side
    640,899x = 232,246,729,355.39
  5. Step 5: Solve for x
    x = 232,246,729,355.39/640,899
  6. Step 6: Final answer
    x = 362,376.49

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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.