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Finding the Fourth Proportional to 318,058.13, 477,059.18 and 190,844.39

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Solution

The fourth proportional to 318,058.13, 477,059.18 and 190,844.39 is: 286,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,058.13 : 477,059.18 = 190,844.39 : x
  2. Step 2: Convert to fraction form
    318,058.13/477,059.18 = 190,844.39/x
  3. Step 3: Cross multiply
    318,058.13x = 477,059.18 × 190,844.39
  4. Step 4: Simplify right side
    318,058.13x = 91,044,064,861.48
  5. Step 5: Solve for x
    x = 91,044,064,861.48/318,058.13
  6. Step 6: Final answer
    x = 286,249.77

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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.