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Finding the Fourth Proportional to 511,043.40, 766,856.70 and 195,726.60

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Solution

The fourth proportional to 511,043.40, 766,856.70 and 195,726.60 is: 293,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,043.40 : 766,856.70 = 195,726.60 : x
  2. Step 2: Convert to fraction form
    511,043.40/766,856.70 = 195,726.60/x
  3. Step 3: Cross multiply
    511,043.40x = 766,856.70 × 195,726.60
  4. Step 4: Simplify right side
    511,043.40x = 150,094,254,578.22
  5. Step 5: Solve for x
    x = 150,094,254,578.22/511,043.40
  6. Step 6: Final answer
    x = 293,701.58

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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.