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Finding the Fourth Proportional to 531,609.21, 794,025.18 and 480,930.48

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Solution

The fourth proportional to 531,609.21, 794,025.18 and 480,930.48 is: 718,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,609.21 : 794,025.18 = 480,930.48 : x
  2. Step 2: Convert to fraction form
    531,609.21/794,025.18 = 480,930.48/x
  3. Step 3: Cross multiply
    531,609.21x = 794,025.18 × 480,930.48
  4. Step 4: Simplify right side
    531,609.21x = 381,870,910,949.49
  5. Step 5: Solve for x
    x = 381,870,910,949.49/531,609.21
  6. Step 6: Final answer
    x = 718,330.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.