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Finding the Fourth Proportional to 422,021.04, 633,031.54 and 141,537.48

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Solution

The fourth proportional to 422,021.04, 633,031.54 and 141,537.48 is: 212,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,021.04 : 633,031.54 = 141,537.48 : x
  2. Step 2: Convert to fraction form
    422,021.04/633,031.54 = 141,537.48/x
  3. Step 3: Cross multiply
    422,021.04x = 633,031.54 × 141,537.48
  4. Step 4: Simplify right side
    422,021.04x = 89,597,688,932.12
  5. Step 5: Solve for x
    x = 89,597,688,932.12/422,021.04
  6. Step 6: Final answer
    x = 212,306.21

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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.