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Finding the Fourth Proportional to 339,579, 508,592.88 and 162,211.50

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Solution

The fourth proportional to 339,579, 508,592.88 and 162,211.50 is: 242,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,579 : 508,592.88 = 162,211.50 : x
  2. Step 2: Convert to fraction form
    339,579/508,592.88 = 162,211.50/x
  3. Step 3: Cross multiply
    339,579x = 508,592.88 × 162,211.50
  4. Step 4: Simplify right side
    339,579x = 82,499,613,954.12
  5. Step 5: Solve for x
    x = 82,499,613,954.12/339,579
  6. Step 6: Final answer
    x = 242,946.75

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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.