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Finding the Fourth Proportional to 262,496.30, 393,744.45 and 210,008.30

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Solution

The fourth proportional to 262,496.30, 393,744.45 and 210,008.30 is: 315,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,496.30 : 393,744.45 = 210,008.30 : x
  2. Step 2: Convert to fraction form
    262,496.30/393,744.45 = 210,008.30/x
  3. Step 3: Cross multiply
    262,496.30x = 393,744.45 × 210,008.30
  4. Step 4: Simplify right side
    262,496.30x = 82,689,602,578.94
  5. Step 5: Solve for x
    x = 82,689,602,578.94/262,496.30
  6. Step 6: Final answer
    x = 315,012.45

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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.