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Finding the Fourth Proportional to 448,420.53, 672,001.33 and 245,494.95

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Solution

The fourth proportional to 448,420.53, 672,001.33 and 245,494.95 is: 367,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,420.53 : 672,001.33 = 245,494.95 : x
  2. Step 2: Convert to fraction form
    448,420.53/672,001.33 = 245,494.95/x
  3. Step 3: Cross multiply
    448,420.53x = 672,001.33 × 245,494.95
  4. Step 4: Simplify right side
    448,420.53x = 164,972,932,908.28
  5. Step 5: Solve for x
    x = 164,972,932,908.28/448,420.53
  6. Step 6: Final answer
    x = 367,897.81

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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.