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Finding the Fourth Proportional to 556,916.31, 768,523.95 and 302,262.03

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Solution

The fourth proportional to 556,916.31, 768,523.95 and 302,262.03 is: 417,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,916.31 : 768,523.95 = 302,262.03 : x
  2. Step 2: Convert to fraction form
    556,916.31/768,523.95 = 302,262.03/x
  3. Step 3: Cross multiply
    556,916.31x = 768,523.95 × 302,262.03
  4. Step 4: Simplify right side
    556,916.31x = 232,295,609,230.62
  5. Step 5: Solve for x
    x = 232,295,609,230.62/556,916.31
  6. Step 6: Final answer
    x = 417,110.44

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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.