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Finding the Fourth Proportional to 447,388.92, 617,406.98 and 253,809.59

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Solution

The fourth proportional to 447,388.92, 617,406.98 and 253,809.59 is: 350,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,388.92 : 617,406.98 = 253,809.59 : x
  2. Step 2: Convert to fraction form
    447,388.92/617,406.98 = 253,809.59/x
  3. Step 3: Cross multiply
    447,388.92x = 617,406.98 × 253,809.59
  4. Step 4: Simplify right side
    447,388.92x = 156,703,808,100.86
  5. Step 5: Solve for x
    x = 156,703,808,100.86/447,388.92
  6. Step 6: Final answer
    x = 350,263.05

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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.