Home / 641,821.13-962,883.52-209,536.28

Finding the Fourth Proportional to 641,821.13, 962,883.52 and 209,536.28

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Solution

The fourth proportional to 641,821.13, 962,883.52 and 209,536.28 is: 314,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,821.13 : 962,883.52 = 209,536.28 : x
  2. Step 2: Convert to fraction form
    641,821.13/962,883.52 = 209,536.28/x
  3. Step 3: Cross multiply
    641,821.13x = 962,883.52 × 209,536.28
  4. Step 4: Simplify right side
    641,821.13x = 201,759,029,126.66
  5. Step 5: Solve for x
    x = 201,759,029,126.66/641,821.13
  6. Step 6: Final answer
    x = 314,353.98

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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.