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Finding the Fourth Proportional to 434,558.70, 651,838.05 and 293,553.90

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Solution

The fourth proportional to 434,558.70, 651,838.05 and 293,553.90 is: 440,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,558.70 : 651,838.05 = 293,553.90 : x
  2. Step 2: Convert to fraction form
    434,558.70/651,838.05 = 293,553.90/x
  3. Step 3: Cross multiply
    434,558.70x = 651,838.05 × 293,553.90
  4. Step 4: Simplify right side
    434,558.70x = 191,349,601,745.90
  5. Step 5: Solve for x
    x = 191,349,601,745.90/434,558.70
  6. Step 6: Final answer
    x = 440,330.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.