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Finding the Fourth Proportional to 384,347.80, 576,521.70 and 171,115.30

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Solution

The fourth proportional to 384,347.80, 576,521.70 and 171,115.30 is: 256,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,347.80 : 576,521.70 = 171,115.30 : x
  2. Step 2: Convert to fraction form
    384,347.80/576,521.70 = 171,115.30/x
  3. Step 3: Cross multiply
    384,347.80x = 576,521.70 × 171,115.30
  4. Step 4: Simplify right side
    384,347.80x = 98,651,683,652.01
  5. Step 5: Solve for x
    x = 98,651,683,652.01/384,347.80
  6. Step 6: Final answer
    x = 256,672.95

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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.