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Finding the Fourth Proportional to 421,021.24, 580,992.24 and 230,041.24

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Solution

The fourth proportional to 421,021.24, 580,992.24 and 230,041.24 is: 317,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,021.24 : 580,992.24 = 230,041.24 : x
  2. Step 2: Convert to fraction form
    421,021.24/580,992.24 = 230,041.24/x
  3. Step 3: Cross multiply
    421,021.24x = 580,992.24 × 230,041.24
  4. Step 4: Simplify right side
    421,021.24x = 133,652,175,319.98
  5. Step 5: Solve for x
    x = 133,652,175,319.98/421,021.24
  6. Step 6: Final answer
    x = 317,447.58

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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.