Home / 430,917.87-646,352.49-190,962.66

Finding the Fourth Proportional to 430,917.87, 646,352.49 and 190,962.66

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Solution

The fourth proportional to 430,917.87, 646,352.49 and 190,962.66 is: 286,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,917.87 : 646,352.49 = 190,962.66 : x
  2. Step 2: Convert to fraction form
    430,917.87/646,352.49 = 190,962.66/x
  3. Step 3: Cross multiply
    430,917.87x = 646,352.49 × 190,962.66
  4. Step 4: Simplify right side
    430,917.87x = 123,429,190,788.02
  5. Step 5: Solve for x
    x = 123,429,190,788.02/430,917.87
  6. Step 6: Final answer
    x = 286,433.21

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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.