Home / 265,985.20-398,977.80-196,001.20

Finding the Fourth Proportional to 265,985.20, 398,977.80 and 196,001.20

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Solution

The fourth proportional to 265,985.20, 398,977.80 and 196,001.20 is: 294,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,985.20 : 398,977.80 = 196,001.20 : x
  2. Step 2: Convert to fraction form
    265,985.20/398,977.80 = 196,001.20/x
  3. Step 3: Cross multiply
    265,985.20x = 398,977.80 × 196,001.20
  4. Step 4: Simplify right side
    265,985.20x = 78,200,127,573.36
  5. Step 5: Solve for x
    x = 78,200,127,573.36/265,985.20
  6. Step 6: Final answer
    x = 294,001.80

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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.