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Finding the Fourth Proportional to 318,381.01, 439,372.60 and 175,141.06

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Solution

The fourth proportional to 318,381.01, 439,372.60 and 175,141.06 is: 241,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,381.01 : 439,372.60 = 175,141.06 : x
  2. Step 2: Convert to fraction form
    318,381.01/439,372.60 = 175,141.06/x
  3. Step 3: Cross multiply
    318,381.01x = 439,372.60 × 175,141.06
  4. Step 4: Simplify right side
    318,381.01x = 76,952,181,362.67
  5. Step 5: Solve for x
    x = 76,952,181,362.67/318,381.01
  6. Step 6: Final answer
    x = 241,698.40

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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.