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Finding the Fourth Proportional to 608,411.19, 910,703.34 and 417,755.82

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Solution

The fourth proportional to 608,411.19, 910,703.34 and 417,755.82 is: 625,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,411.19 : 910,703.34 = 417,755.82 : x
  2. Step 2: Convert to fraction form
    608,411.19/910,703.34 = 417,755.82/x
  3. Step 3: Cross multiply
    608,411.19x = 910,703.34 × 417,755.82
  4. Step 4: Simplify right side
    608,411.19x = 380,451,620,578.44
  5. Step 5: Solve for x
    x = 380,451,620,578.44/608,411.19
  6. Step 6: Final answer
    x = 625,319.89

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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.