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Finding the Fourth Proportional to 471,772.30, 651,053.56 and 256,916.56

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Solution

The fourth proportional to 471,772.30, 651,053.56 and 256,916.56 is: 354,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,772.30 : 651,053.56 = 256,916.56 : x
  2. Step 2: Convert to fraction form
    471,772.30/651,053.56 = 256,916.56/x
  3. Step 3: Cross multiply
    471,772.30x = 651,053.56 × 256,916.56
  4. Step 4: Simplify right side
    471,772.30x = 167,266,441,010.95
  5. Step 5: Solve for x
    x = 167,266,441,010.95/471,772.30
  6. Step 6: Final answer
    x = 354,549.09

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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.