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Finding the Fourth Proportional to 605,596.70, 835,034.87 and 387,514.53

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Solution

The fourth proportional to 605,596.70, 835,034.87 and 387,514.53 is: 534,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,596.70 : 835,034.87 = 387,514.53 : x
  2. Step 2: Convert to fraction form
    605,596.70/835,034.87 = 387,514.53/x
  3. Step 3: Cross multiply
    605,596.70x = 835,034.87 × 387,514.53
  4. Step 4: Simplify right side
    605,596.70x = 323,588,146,150.45
  5. Step 5: Solve for x
    x = 323,588,146,150.45/605,596.70
  6. Step 6: Final answer
    x = 534,329.44

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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.