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Finding the Fourth Proportional to 300,885.58, 415,264.63 and 186,201.16

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Solution

The fourth proportional to 300,885.58, 415,264.63 and 186,201.16 is: 256,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,885.58 : 415,264.63 = 186,201.16 : x
  2. Step 2: Convert to fraction form
    300,885.58/415,264.63 = 186,201.16/x
  3. Step 3: Cross multiply
    300,885.58x = 415,264.63 × 186,201.16
  4. Step 4: Simplify right side
    300,885.58x = 77,322,755,347.47
  5. Step 5: Solve for x
    x = 77,322,755,347.47/300,885.58
  6. Step 6: Final answer
    x = 256,983.92

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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.