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Finding the Fourth Proportional to 614,137.72, 847,511.76 and 356,064.70

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Solution

The fourth proportional to 614,137.72, 847,511.76 and 356,064.70 is: 491,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,137.72 : 847,511.76 = 356,064.70 : x
  2. Step 2: Convert to fraction form
    614,137.72/847,511.76 = 356,064.70/x
  3. Step 3: Cross multiply
    614,137.72x = 847,511.76 × 356,064.70
  4. Step 4: Simplify right side
    614,137.72x = 301,769,020,570.87
  5. Step 5: Solve for x
    x = 301,769,020,570.87/614,137.72
  6. Step 6: Final answer
    x = 491,370.28

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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.