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Finding the Fourth Proportional to 518,380.02, 715,455.99 and 411,763.77

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Solution

The fourth proportional to 518,380.02, 715,455.99 and 411,763.77 is: 568,306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,380.02 : 715,455.99 = 411,763.77 : x
  2. Step 2: Convert to fraction form
    518,380.02/715,455.99 = 411,763.77/x
  3. Step 3: Cross multiply
    518,380.02x = 715,455.99 × 411,763.77
  4. Step 4: Simplify right side
    518,380.02x = 294,598,855,711.48
  5. Step 5: Solve for x
    x = 294,598,855,711.48/518,380.02
  6. Step 6: Final answer
    x = 568,306.73

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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.