Home / 662,128.80-993,116.40-188,887.20

Finding the Fourth Proportional to 662,128.80, 993,116.40 and 188,887.20

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Solution

The fourth proportional to 662,128.80, 993,116.40 and 188,887.20 is: 283,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,128.80 : 993,116.40 = 188,887.20 : x
  2. Step 2: Convert to fraction form
    662,128.80/993,116.40 = 188,887.20/x
  3. Step 3: Cross multiply
    662,128.80x = 993,116.40 × 188,887.20
  4. Step 4: Simplify right side
    662,128.80x = 187,586,976,070.08
  5. Step 5: Solve for x
    x = 187,586,976,070.08/662,128.80
  6. Step 6: Final answer
    x = 283,308.89

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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.