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Finding the Fourth Proportional to 556,889.92, 768,507.90 and 302,241.10

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Solution

The fourth proportional to 556,889.92, 768,507.90 and 302,241.10 is: 417,092.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,889.92 : 768,507.90 = 302,241.10 : x
  2. Step 2: Convert to fraction form
    556,889.92/768,507.90 = 302,241.10/x
  3. Step 3: Cross multiply
    556,889.92x = 768,507.90 × 302,241.10
  4. Step 4: Simplify right side
    556,889.92x = 232,274,673,054.69
  5. Step 5: Solve for x
    x = 232,274,673,054.69/556,889.92
  6. Step 6: Final answer
    x = 417,092.62

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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.