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Finding the Fourth Proportional to 613,582.83, 920,513.67 and 187,156.80

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Solution

The fourth proportional to 613,582.83, 920,513.67 and 187,156.80 is: 280,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,582.83 : 920,513.67 = 187,156.80 : x
  2. Step 2: Convert to fraction form
    613,582.83/920,513.67 = 187,156.80/x
  3. Step 3: Cross multiply
    613,582.83x = 920,513.67 × 187,156.80
  4. Step 4: Simplify right side
    613,582.83x = 172,280,392,833.46
  5. Step 5: Solve for x
    x = 172,280,392,833.46/613,582.83
  6. Step 6: Final answer
    x = 280,777.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.