Home / 638,358.57-957,677.88-189,114.55

Finding the Fourth Proportional to 638,358.57, 957,677.88 and 189,114.55

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Solution

The fourth proportional to 638,358.57, 957,677.88 and 189,114.55 is: 283,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,358.57 : 957,677.88 = 189,114.55 : x
  2. Step 2: Convert to fraction form
    638,358.57/957,677.88 = 189,114.55/x
  3. Step 3: Cross multiply
    638,358.57x = 957,677.88 × 189,114.55
  4. Step 4: Simplify right side
    638,358.57x = 181,110,819,636.14
  5. Step 5: Solve for x
    x = 181,110,819,636.14/638,358.57
  6. Step 6: Final answer
    x = 283,713.30

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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.