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Finding the Fourth Proportional to 318,355.54, 439,323.44 and 175,112.58

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Solution

The fourth proportional to 318,355.54, 439,323.44 and 175,112.58 is: 241,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,355.54 : 439,323.44 = 175,112.58 : x
  2. Step 2: Convert to fraction form
    318,355.54/439,323.44 = 175,112.58/x
  3. Step 3: Cross multiply
    318,355.54x = 439,323.44 × 175,112.58
  4. Step 4: Simplify right side
    318,355.54x = 76,931,061,032.88
  5. Step 5: Solve for x
    x = 76,931,061,032.88/318,355.54
  6. Step 6: Final answer
    x = 241,651.40

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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.