Home / 412,599.16-618,907.38-132,115.60

Finding the Fourth Proportional to 412,599.16, 618,907.38 and 132,115.60

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Solution

The fourth proportional to 412,599.16, 618,907.38 and 132,115.60 is: 198,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,599.16 : 618,907.38 = 132,115.60 : x
  2. Step 2: Convert to fraction form
    412,599.16/618,907.38 = 132,115.60/x
  3. Step 3: Cross multiply
    412,599.16x = 618,907.38 × 132,115.60
  4. Step 4: Simplify right side
    412,599.16x = 81,767,319,853.13
  5. Step 5: Solve for x
    x = 81,767,319,853.13/412,599.16
  6. Step 6: Final answer
    x = 198,176.17

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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.