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Finding the Fourth Proportional to 707,712.53, 1,060,519.02 and 519,805.49

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Solution

The fourth proportional to 707,712.53, 1,060,519.02 and 519,805.49 is: 778,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,712.53 : 1,060,519.02 = 519,805.49 : x
  2. Step 2: Convert to fraction form
    707,712.53/1,060,519.02 = 519,805.49/x
  3. Step 3: Cross multiply
    707,712.53x = 1,060,519.02 × 519,805.49
  4. Step 4: Simplify right side
    707,712.53x = 551,263,611,496.72
  5. Step 5: Solve for x
    x = 551,263,611,496.72/707,712.53
  6. Step 6: Final answer
    x = 778,937.19

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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.