Home / 638,210.18-957,312.30-188,933.60

Finding the Fourth Proportional to 638,210.18, 957,312.30 and 188,933.60

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Solution

The fourth proportional to 638,210.18, 957,312.30 and 188,933.60 is: 283,399.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,210.18 : 957,312.30 = 188,933.60 : x
  2. Step 2: Convert to fraction form
    638,210.18/957,312.30 = 188,933.60/x
  3. Step 3: Cross multiply
    638,210.18x = 957,312.30 × 188,933.60
  4. Step 4: Simplify right side
    638,210.18x = 180,868,459,163.28
  5. Step 5: Solve for x
    x = 180,868,459,163.28/638,210.18
  6. Step 6: Final answer
    x = 283,399.52

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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.