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Finding the Fourth Proportional to 318,463.25, 477,682.52 and 118,783.26

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Solution

The fourth proportional to 318,463.25, 477,682.52 and 118,783.26 is: 178,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,463.25 : 477,682.52 = 118,783.26 : x
  2. Step 2: Convert to fraction form
    318,463.25/477,682.52 = 118,783.26/x
  3. Step 3: Cross multiply
    318,463.25x = 477,682.52 × 118,783.26
  4. Step 4: Simplify right side
    318,463.25x = 56,740,686,376.70
  5. Step 5: Solve for x
    x = 56,740,686,376.70/318,463.25
  6. Step 6: Final answer
    x = 178,170.28

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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.