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Finding the Fourth Proportional to 318,548.46, 477,398.12 and 118,667.60

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Solution

The fourth proportional to 318,548.46, 477,398.12 and 118,667.60 is: 177,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,548.46 : 477,398.12 = 118,667.60 : x
  2. Step 2: Convert to fraction form
    318,548.46/477,398.12 = 118,667.60/x
  3. Step 3: Cross multiply
    318,548.46x = 477,398.12 × 118,667.60
  4. Step 4: Simplify right side
    318,548.46x = 56,651,686,164.58
  5. Step 5: Solve for x
    x = 56,651,686,164.58/318,548.46
  6. Step 6: Final answer
    x = 177,843.23

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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.