Home / 639,219.60-882,132.12-352,751.76

Finding the Fourth Proportional to 639,219.60, 882,132.12 and 352,751.76

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Solution

The fourth proportional to 639,219.60, 882,132.12 and 352,751.76 is: 486,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,219.60 : 882,132.12 = 352,751.76 : x
  2. Step 2: Convert to fraction form
    639,219.60/882,132.12 = 352,751.76/x
  3. Step 3: Cross multiply
    639,219.60x = 882,132.12 × 352,751.76
  4. Step 4: Simplify right side
    639,219.60x = 311,173,657,882.53
  5. Step 5: Solve for x
    x = 311,173,657,882.53/639,219.60
  6. Step 6: Final answer
    x = 486,802.44

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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.