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Finding the Fourth Proportional to 439,910.64, 607,060.44 and 238,702.32

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Solution

The fourth proportional to 439,910.64, 607,060.44 and 238,702.32 is: 329,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,910.64 : 607,060.44 = 238,702.32 : x
  2. Step 2: Convert to fraction form
    439,910.64/607,060.44 = 238,702.32/x
  3. Step 3: Cross multiply
    439,910.64x = 607,060.44 × 238,702.32
  4. Step 4: Simplify right side
    439,910.64x = 144,906,735,408.22
  5. Step 5: Solve for x
    x = 144,906,735,408.22/439,910.64
  6. Step 6: Final answer
    x = 329,400.39

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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.