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Finding the Fourth Proportional to 447,457.86, 617,505.72 and 253,873.68

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Solution

The fourth proportional to 447,457.86, 617,505.72 and 253,873.68 is: 350,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,457.86 : 617,505.72 = 253,873.68 : x
  2. Step 2: Convert to fraction form
    447,457.86/617,505.72 = 253,873.68/x
  3. Step 3: Cross multiply
    447,457.86x = 617,505.72 × 253,873.68
  4. Step 4: Simplify right side
    447,457.86x = 156,768,447,717.82
  5. Step 5: Solve for x
    x = 156,768,447,717.82/447,457.86
  6. Step 6: Final answer
    x = 350,353.55

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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.