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Finding the Fourth Proportional to 625,574.87, 864,010.76 and 411,669.87

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Solution

The fourth proportional to 625,574.87, 864,010.76 and 411,669.87 is: 568,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,574.87 : 864,010.76 = 411,669.87 : x
  2. Step 2: Convert to fraction form
    625,574.87/864,010.76 = 411,669.87/x
  3. Step 3: Cross multiply
    625,574.87x = 864,010.76 × 411,669.87
  4. Step 4: Simplify right side
    625,574.87x = 355,687,197,247.80
  5. Step 5: Solve for x
    x = 355,687,197,247.80/625,574.87
  6. Step 6: Final answer
    x = 568,576.54

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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.