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Finding the Fourth Proportional to 503,777.71, 695,160.30 and 285,917.10

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Solution

The fourth proportional to 503,777.71, 695,160.30 and 285,917.10 is: 394,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,777.71 : 695,160.30 = 285,917.10 : x
  2. Step 2: Convert to fraction form
    503,777.71/695,160.30 = 285,917.10/x
  3. Step 3: Cross multiply
    503,777.71x = 695,160.30 × 285,917.10
  4. Step 4: Simplify right side
    503,777.71x = 198,758,217,011.13
  5. Step 5: Solve for x
    x = 198,758,217,011.13/503,777.71
  6. Step 6: Final answer
    x = 394,535.55

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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.