Home / 415,907.97-623,972.49-131,603.58

Finding the Fourth Proportional to 415,907.97, 623,972.49 and 131,603.58

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Solution

The fourth proportional to 415,907.97, 623,972.49 and 131,603.58 is: 197,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,907.97 : 623,972.49 = 131,603.58 : x
  2. Step 2: Convert to fraction form
    415,907.97/623,972.49 = 131,603.58/x
  3. Step 3: Cross multiply
    415,907.97x = 623,972.49 × 131,603.58
  4. Step 4: Simplify right side
    415,907.97x = 82,117,011,165.62
  5. Step 5: Solve for x
    x = 82,117,011,165.62/415,907.97
  6. Step 6: Final answer
    x = 197,440.34

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1.5x scale

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.