Home / 468,645.90-646,723.35-253,784.22

Finding the Fourth Proportional to 468,645.90, 646,723.35 and 253,784.22

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Solution

The fourth proportional to 468,645.90, 646,723.35 and 253,784.22 is: 350,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,645.90 : 646,723.35 = 253,784.22 : x
  2. Step 2: Convert to fraction form
    468,645.90/646,723.35 = 253,784.22/x
  3. Step 3: Cross multiply
    468,645.90x = 646,723.35 × 253,784.22
  4. Step 4: Simplify right side
    468,645.90x = 164,128,180,935.54
  5. Step 5: Solve for x
    x = 164,128,180,935.54/468,645.90
  6. Step 6: Final answer
    x = 350,217.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.