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Finding the Fourth Proportional to 448,578.34, 672,313.45 and 384,951.22

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Solution

The fourth proportional to 448,578.34, 672,313.45 and 384,951.22 is: 576,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,578.34 : 672,313.45 = 384,951.22 : x
  2. Step 2: Convert to fraction form
    448,578.34/672,313.45 = 384,951.22/x
  3. Step 3: Cross multiply
    448,578.34x = 672,313.45 × 384,951.22
  4. Step 4: Simplify right side
    448,578.34x = 258,807,883,518.32
  5. Step 5: Solve for x
    x = 258,807,883,518.32/448,578.34
  6. Step 6: Final answer
    x = 576,951.36

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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.