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Finding the Fourth Proportional to 437,256.90, 603,693.14 and 356,876.28

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Solution

The fourth proportional to 437,256.90, 603,693.14 and 356,876.28 is: 492,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,256.90 : 603,693.14 = 356,876.28 : x
  2. Step 2: Convert to fraction form
    437,256.90/603,693.14 = 356,876.28/x
  3. Step 3: Cross multiply
    437,256.90x = 603,693.14 × 356,876.28
  4. Step 4: Simplify right side
    437,256.90x = 215,443,760,280.34
  5. Step 5: Solve for x
    x = 215,443,760,280.34/437,256.90
  6. Step 6: Final answer
    x = 492,716.66

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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.