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Finding the Fourth Proportional to 671,258.75, 926,175.41 and 395,627.59

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Solution

The fourth proportional to 671,258.75, 926,175.41 and 395,627.59 is: 545,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,258.75 : 926,175.41 = 395,627.59 : x
  2. Step 2: Convert to fraction form
    671,258.75/926,175.41 = 395,627.59/x
  3. Step 3: Cross multiply
    671,258.75x = 926,175.41 × 395,627.59
  4. Step 4: Simplify right side
    671,258.75x = 366,420,548,264.15
  5. Step 5: Solve for x
    x = 366,420,548,264.15/671,258.75
  6. Step 6: Final answer
    x = 545,870.80

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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.