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Finding the Fourth Proportional to 543,523.01, 815,312.88 and 164,434.19

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Solution

The fourth proportional to 543,523.01, 815,312.88 and 164,434.19 is: 246,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,523.01 : 815,312.88 = 164,434.19 : x
  2. Step 2: Convert to fraction form
    543,523.01/815,312.88 = 164,434.19/x
  3. Step 3: Cross multiply
    543,523.01x = 815,312.88 × 164,434.19
  4. Step 4: Simplify right side
    543,523.01x = 134,065,308,942.80
  5. Step 5: Solve for x
    x = 134,065,308,942.80/543,523.01
  6. Step 6: Final answer
    x = 246,659.86

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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.