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Finding the Fourth Proportional to 707,715.81, 1,060,523.96 and 519,808.77

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Solution

The fourth proportional to 707,715.81, 1,060,523.96 and 519,808.77 is: 778,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,715.81 : 1,060,523.96 = 519,808.77 : x
  2. Step 2: Convert to fraction form
    707,715.81/1,060,523.96 = 519,808.77/x
  3. Step 3: Cross multiply
    707,715.81x = 1,060,523.96 × 519,808.77
  4. Step 4: Simplify right side
    707,715.81x = 551,269,652,604.09
  5. Step 5: Solve for x
    x = 551,269,652,604.09/707,715.81
  6. Step 6: Final answer
    x = 778,942.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.