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Finding the Fourth Proportional to 311,038.63, 429,186.57 and 175,064.49

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Solution

The fourth proportional to 311,038.63, 429,186.57 and 175,064.49 is: 241,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,038.63 : 429,186.57 = 175,064.49 : x
  2. Step 2: Convert to fraction form
    311,038.63/429,186.57 = 175,064.49/x
  3. Step 3: Cross multiply
    311,038.63x = 429,186.57 × 175,064.49
  4. Step 4: Simplify right side
    311,038.63x = 75,135,327,335.41
  5. Step 5: Solve for x
    x = 75,135,327,335.41/311,038.63
  6. Step 6: Final answer
    x = 241,562.68

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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.