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Finding the Fourth Proportional to 532,419.48, 734,803.31 and 303,032.54

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Solution

The fourth proportional to 532,419.48, 734,803.31 and 303,032.54 is: 418,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,419.48 : 734,803.31 = 303,032.54 : x
  2. Step 2: Convert to fraction form
    532,419.48/734,803.31 = 303,032.54/x
  3. Step 3: Cross multiply
    532,419.48x = 734,803.31 × 303,032.54
  4. Step 4: Simplify right side
    532,419.48x = 222,669,316,024.30
  5. Step 5: Solve for x
    x = 222,669,316,024.30/532,419.48
  6. Step 6: Final answer
    x = 418,221.58

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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.