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Finding the Fourth Proportional to 316,193.79, 436,224.86 and 201,451.89

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Solution

The fourth proportional to 316,193.79, 436,224.86 and 201,451.89 is: 277,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,193.79 : 436,224.86 = 201,451.89 : x
  2. Step 2: Convert to fraction form
    316,193.79/436,224.86 = 201,451.89/x
  3. Step 3: Cross multiply
    316,193.79x = 436,224.86 × 201,451.89
  4. Step 4: Simplify right side
    316,193.79x = 87,878,322,575.42
  5. Step 5: Solve for x
    x = 87,878,322,575.42/316,193.79
  6. Step 6: Final answer
    x = 277,925.51

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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.