Home / 623,921.11-861,011.30-352,046.63

Finding the Fourth Proportional to 623,921.11, 861,011.30 and 352,046.63

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Solution

The fourth proportional to 623,921.11, 861,011.30 and 352,046.63 is: 485,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,921.11 : 861,011.30 = 352,046.63 : x
  2. Step 2: Convert to fraction form
    623,921.11/861,011.30 = 352,046.63/x
  3. Step 3: Cross multiply
    623,921.11x = 861,011.30 × 352,046.63
  4. Step 4: Simplify right side
    623,921.11x = 303,116,126,556.92
  5. Step 5: Solve for x
    x = 303,116,126,556.92/623,921.11
  6. Step 6: Final answer
    x = 485,824.44

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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.