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Finding the Fourth Proportional to 570,093.39, 786,743.28 and 343,753.47

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Solution

The fourth proportional to 570,093.39, 786,743.28 and 343,753.47 is: 474,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,093.39 : 786,743.28 = 343,753.47 : x
  2. Step 2: Convert to fraction form
    570,093.39/786,743.28 = 343,753.47/x
  3. Step 3: Cross multiply
    570,093.39x = 786,743.28 × 343,753.47
  4. Step 4: Simplify right side
    570,093.39x = 270,445,732,499.18
  5. Step 5: Solve for x
    x = 270,445,732,499.18/570,093.39
  6. Step 6: Final answer
    x = 474,388.47

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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.