Home / 639,173.76-882,022.56-352,693.20

Finding the Fourth Proportional to 639,173.76, 882,022.56 and 352,693.20

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Solution

The fourth proportional to 639,173.76, 882,022.56 and 352,693.20 is: 486,696.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,173.76 : 882,022.56 = 352,693.20 : x
  2. Step 2: Convert to fraction form
    639,173.76/882,022.56 = 352,693.20/x
  3. Step 3: Cross multiply
    639,173.76x = 882,022.56 × 352,693.20
  4. Step 4: Simplify right side
    639,173.76x = 311,083,359,158.59
  5. Step 5: Solve for x
    x = 311,083,359,158.59/639,173.76
  6. Step 6: Final answer
    x = 486,696.07

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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.