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Finding the Fourth Proportional to 565,502.88, 779,815.44 and 374,446.56

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Solution

The fourth proportional to 565,502.88, 779,815.44 and 374,446.56 is: 516,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,502.88 : 779,815.44 = 374,446.56 : x
  2. Step 2: Convert to fraction form
    565,502.88/779,815.44 = 374,446.56/x
  3. Step 3: Cross multiply
    565,502.88x = 779,815.44 × 374,446.56
  4. Step 4: Simplify right side
    565,502.88x = 291,999,208,942.89
  5. Step 5: Solve for x
    x = 291,999,208,942.89/565,502.88
  6. Step 6: Final answer
    x = 516,353.18

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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.