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Finding the Fourth Proportional to 545,664.10, 818,496.15 and 171,801.70

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Solution

The fourth proportional to 545,664.10, 818,496.15 and 171,801.70 is: 257,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,664.10 : 818,496.15 = 171,801.70 : x
  2. Step 2: Convert to fraction form
    545,664.10/818,496.15 = 171,801.70/x
  3. Step 3: Cross multiply
    545,664.10x = 818,496.15 × 171,801.70
  4. Step 4: Simplify right side
    545,664.10x = 140,619,030,013.46
  5. Step 5: Solve for x
    x = 140,619,030,013.46/545,664.10
  6. Step 6: Final answer
    x = 257,702.55

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Similar ratio
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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.