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Finding the Fourth Proportional to 625,127.99, 862,673.17 and 338,653.67

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Solution

The fourth proportional to 625,127.99, 862,673.17 and 338,653.67 is: 467,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,127.99 : 862,673.17 = 338,653.67 : x
  2. Step 2: Convert to fraction form
    625,127.99/862,673.17 = 338,653.67/x
  3. Step 3: Cross multiply
    625,127.99x = 862,673.17 × 338,653.67
  4. Step 4: Simplify right side
    625,127.99x = 292,147,435,031.03
  5. Step 5: Solve for x
    x = 292,147,435,031.03/625,127.99
  6. Step 6: Final answer
    x = 467,340.19

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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.