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Finding the Fourth Proportional to 318,280.41, 439,218.21 and 175,040.46

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Solution

The fourth proportional to 318,280.41, 439,218.21 and 175,040.46 is: 241,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,280.41 : 439,218.21 = 175,040.46 : x
  2. Step 2: Convert to fraction form
    318,280.41/439,218.21 = 175,040.46/x
  3. Step 3: Cross multiply
    318,280.41x = 439,218.21 × 175,040.46
  4. Step 4: Simplify right side
    318,280.41x = 76,880,957,518.78
  5. Step 5: Solve for x
    x = 76,880,957,518.78/318,280.41
  6. Step 6: Final answer
    x = 241,551.02

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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.