Home / 666,365.36-999,546.82-217,085.70

Finding the Fourth Proportional to 666,365.36, 999,546.82 and 217,085.70

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Solution

The fourth proportional to 666,365.36, 999,546.82 and 217,085.70 is: 325,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,365.36 : 999,546.82 = 217,085.70 : x
  2. Step 2: Convert to fraction form
    666,365.36/999,546.82 = 217,085.70/x
  3. Step 3: Cross multiply
    666,365.36x = 999,546.82 × 217,085.70
  4. Step 4: Simplify right side
    666,365.36x = 216,987,321,102.47
  5. Step 5: Solve for x
    x = 216,987,321,102.47/666,365.36
  6. Step 6: Final answer
    x = 325,628.15

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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.