Home / 638,000.26-957,000.37-188,686.17

Finding the Fourth Proportional to 638,000.26, 957,000.37 and 188,686.17

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Solution

The fourth proportional to 638,000.26, 957,000.37 and 188,686.17 is: 283,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,000.26 : 957,000.37 = 188,686.17 : x
  2. Step 2: Convert to fraction form
    638,000.26/957,000.37 = 188,686.17/x
  3. Step 3: Cross multiply
    638,000.26x = 957,000.37 × 188,686.17
  4. Step 4: Simplify right side
    638,000.26x = 180,572,734,503.88
  5. Step 5: Solve for x
    x = 180,572,734,503.88/638,000.26
  6. Step 6: Final answer
    x = 283,029.25

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Similar ratio
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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.