Home / 665,143.10-997,058.55-327,907.70

Finding the Fourth Proportional to 665,143.10, 997,058.55 and 327,907.70

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Solution

The fourth proportional to 665,143.10, 997,058.55 and 327,907.70 is: 491,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,143.10 : 997,058.55 = 327,907.70 : x
  2. Step 2: Convert to fraction form
    665,143.10/997,058.55 = 327,907.70/x
  3. Step 3: Cross multiply
    665,143.10x = 997,058.55 × 327,907.70
  4. Step 4: Simplify right side
    665,143.10x = 326,943,175,895.84
  5. Step 5: Solve for x
    x = 326,943,175,895.84/665,143.10
  6. Step 6: Final answer
    x = 491,538.10

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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.