Home / 661,146.75-990,883.56-324,108.18

Finding the Fourth Proportional to 661,146.75, 990,883.56 and 324,108.18

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Solution

The fourth proportional to 661,146.75, 990,883.56 and 324,108.18 is: 485,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,146.75 : 990,883.56 = 324,108.18 : x
  2. Step 2: Convert to fraction form
    661,146.75/990,883.56 = 324,108.18/x
  3. Step 3: Cross multiply
    661,146.75x = 990,883.56 × 324,108.18
  4. Step 4: Simplify right side
    661,146.75x = 321,153,467,223.52
  5. Step 5: Solve for x
    x = 321,153,467,223.52/661,146.75
  6. Step 6: Final answer
    x = 485,752.17

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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.