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Finding the Fourth Proportional to 369,653.40, 510,121.08 and 199,887.12

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Solution

The fourth proportional to 369,653.40, 510,121.08 and 199,887.12 is: 275,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,653.40 : 510,121.08 = 199,887.12 : x
  2. Step 2: Convert to fraction form
    369,653.40/510,121.08 = 199,887.12/x
  3. Step 3: Cross multiply
    369,653.40x = 510,121.08 × 199,887.12
  4. Step 4: Simplify right side
    369,653.40x = 101,966,633,532.49
  5. Step 5: Solve for x
    x = 101,966,633,532.49/369,653.40
  6. Step 6: Final answer
    x = 275,843.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.