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Finding the Fourth Proportional to 389,663.46, 537,537.47 and 236,660.94

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Solution

The fourth proportional to 389,663.46, 537,537.47 and 236,660.94 is: 326,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,663.46 : 537,537.47 = 236,660.94 : x
  2. Step 2: Convert to fraction form
    389,663.46/537,537.47 = 236,660.94/x
  3. Step 3: Cross multiply
    389,663.46x = 537,537.47 × 236,660.94
  4. Step 4: Simplify right side
    389,663.46x = 127,214,121,752.12
  5. Step 5: Solve for x
    x = 127,214,121,752.12/389,663.46
  6. Step 6: Final answer
    x = 326,471.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.