Home / 447,738.38-617,890.04-243,800.48

Finding the Fourth Proportional to 447,738.38, 617,890.04 and 243,800.48

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Solution

The fourth proportional to 447,738.38, 617,890.04 and 243,800.48 is: 336,450.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,738.38 : 617,890.04 = 243,800.48 : x
  2. Step 2: Convert to fraction form
    447,738.38/617,890.04 = 243,800.48/x
  3. Step 3: Cross multiply
    447,738.38x = 617,890.04 × 243,800.48
  4. Step 4: Simplify right side
    447,738.38x = 150,641,884,030.77
  5. Step 5: Solve for x
    x = 150,641,884,030.77/447,738.38
  6. Step 6: Final answer
    x = 336,450.69

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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.