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Finding the Fourth Proportional to 448,034.54, 672,051.81 and 260,914.82

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Solution

The fourth proportional to 448,034.54, 672,051.81 and 260,914.82 is: 391,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,034.54 : 672,051.81 = 260,914.82 : x
  2. Step 2: Convert to fraction form
    448,034.54/672,051.81 = 260,914.82/x
  3. Step 3: Cross multiply
    448,034.54x = 672,051.81 × 260,914.82
  4. Step 4: Simplify right side
    448,034.54x = 175,348,272,371.99
  5. Step 5: Solve for x
    x = 175,348,272,371.99/448,034.54
  6. Step 6: Final answer
    x = 391,372.22

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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.