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Finding the Fourth Proportional to 506,916.50, 699,497.28 and 302,926.82

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Solution

The fourth proportional to 506,916.50, 699,497.28 and 302,926.82 is: 418,010.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,916.50 : 699,497.28 = 302,926.82 : x
  2. Step 2: Convert to fraction form
    506,916.50/699,497.28 = 302,926.82/x
  3. Step 3: Cross multiply
    506,916.50x = 699,497.28 × 302,926.82
  4. Step 4: Simplify right side
    506,916.50x = 211,896,483,131.56
  5. Step 5: Solve for x
    x = 211,896,483,131.56/506,916.50
  6. Step 6: Final answer
    x = 418,010.63

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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.