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Finding the Fourth Proportional to 318,295.18, 439,247.19 and 175,064.86

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Solution

The fourth proportional to 318,295.18, 439,247.19 and 175,064.86 is: 241,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,295.18 : 439,247.19 = 175,064.86 : x
  2. Step 2: Convert to fraction form
    318,295.18/439,247.19 = 175,064.86/x
  3. Step 3: Cross multiply
    318,295.18x = 439,247.19 × 175,064.86
  4. Step 4: Simplify right side
    318,295.18x = 76,896,747,822.74
  5. Step 5: Solve for x
    x = 76,896,747,822.74/318,295.18
  6. Step 6: Final answer
    x = 241,589.42

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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.