Home / 451,308.74-623,089.24-290,443.34

Finding the Fourth Proportional to 451,308.74, 623,089.24 and 290,443.34

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Solution

The fourth proportional to 451,308.74, 623,089.24 and 290,443.34 is: 400,994.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,308.74 : 623,089.24 = 290,443.34 : x
  2. Step 2: Convert to fraction form
    451,308.74/623,089.24 = 290,443.34/x
  3. Step 3: Cross multiply
    451,308.74x = 623,089.24 × 290,443.34
  4. Step 4: Simplify right side
    451,308.74x = 180,972,120,815.28
  5. Step 5: Solve for x
    x = 180,972,120,815.28/451,308.74
  6. Step 6: Final answer
    x = 400,994.06

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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.