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Finding the Fourth Proportional to 503,986.89, 695,382.39 and 286,148.19

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Solution

The fourth proportional to 503,986.89, 695,382.39 and 286,148.19 is: 394,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,986.89 : 695,382.39 = 286,148.19 : x
  2. Step 2: Convert to fraction form
    503,986.89/695,382.39 = 286,148.19/x
  3. Step 3: Cross multiply
    503,986.89x = 695,382.39 × 286,148.19
  4. Step 4: Simplify right side
    503,986.89x = 198,982,412,256.37
  5. Step 5: Solve for x
    x = 198,982,412,256.37/503,986.89
  6. Step 6: Final answer
    x = 394,816.64

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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.