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Finding the Fourth Proportional to 448,242.74, 672,298.42 and 220,477.22

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Solution

The fourth proportional to 448,242.74, 672,298.42 and 220,477.22 is: 330,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,242.74 : 672,298.42 = 220,477.22 : x
  2. Step 2: Convert to fraction form
    448,242.74/672,298.42 = 220,477.22/x
  3. Step 3: Cross multiply
    448,242.74x = 672,298.42 × 220,477.22
  4. Step 4: Simplify right side
    448,242.74x = 148,226,485,832.67
  5. Step 5: Solve for x
    x = 148,226,485,832.67/448,242.74
  6. Step 6: Final answer
    x = 330,683.52

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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.