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Finding the Fourth Proportional to 625,569.72, 863,685.42 and 411,090.36

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Solution

The fourth proportional to 625,569.72, 863,685.42 and 411,090.36 is: 567,567.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,569.72 : 863,685.42 = 411,090.36 : x
  2. Step 2: Convert to fraction form
    625,569.72/863,685.42 = 411,090.36/x
  3. Step 3: Cross multiply
    625,569.72x = 863,685.42 × 411,090.36
  4. Step 4: Simplify right side
    625,569.72x = 355,052,750,234.55
  5. Step 5: Solve for x
    x = 355,052,750,234.55/625,569.72
  6. Step 6: Final answer
    x = 567,567.03

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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.