Home / 451,580.19-623,248.79-288,306.46

Finding the Fourth Proportional to 451,580.19, 623,248.79 and 288,306.46

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Solution

The fourth proportional to 451,580.19, 623,248.79 and 288,306.46 is: 397,906.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,580.19 : 623,248.79 = 288,306.46 : x
  2. Step 2: Convert to fraction form
    451,580.19/623,248.79 = 288,306.46/x
  3. Step 3: Cross multiply
    451,580.19x = 623,248.79 × 288,306.46
  4. Step 4: Simplify right side
    451,580.19x = 179,686,652,344.18
  5. Step 5: Solve for x
    x = 179,686,652,344.18/451,580.19
  6. Step 6: Final answer
    x = 397,906.41

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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.