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Finding the Fourth Proportional to 613,166.77, 845,293.19 and 431,314.27

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Solution

The fourth proportional to 613,166.77, 845,293.19 and 431,314.27 is: 594,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,166.77 : 845,293.19 = 431,314.27 : x
  2. Step 2: Convert to fraction form
    613,166.77/845,293.19 = 431,314.27/x
  3. Step 3: Cross multiply
    613,166.77x = 845,293.19 × 431,314.27
  4. Step 4: Simplify right side
    613,166.77x = 364,587,015,665.79
  5. Step 5: Solve for x
    x = 364,587,015,665.79/613,166.77
  6. Step 6: Final answer
    x = 594,596.83

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Double scale
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Similar ratio
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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.