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Finding the Fourth Proportional to 345,910.40, 518,476.80 and 177,365.60

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Solution

The fourth proportional to 345,910.40, 518,476.80 and 177,365.60 is: 265,849.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,910.40 : 518,476.80 = 177,365.60 : x
  2. Step 2: Convert to fraction form
    345,910.40/518,476.80 = 177,365.60/x
  3. Step 3: Cross multiply
    345,910.40x = 518,476.80 × 177,365.60
  4. Step 4: Simplify right side
    345,910.40x = 91,959,948,718.08
  5. Step 5: Solve for x
    x = 91,959,948,718.08/345,910.40
  6. Step 6: Final answer
    x = 265,849.04

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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.