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Finding the Fourth Proportional to 579,098.54, 864,686.90 and 518,737.34

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Solution

The fourth proportional to 579,098.54, 864,686.90 and 518,737.34 is: 774,557.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,098.54 : 864,686.90 = 518,737.34 : x
  2. Step 2: Convert to fraction form
    579,098.54/864,686.90 = 518,737.34/x
  3. Step 3: Cross multiply
    579,098.54x = 864,686.90 × 518,737.34
  4. Step 4: Simplify right side
    579,098.54x = 448,545,377,466.99
  5. Step 5: Solve for x
    x = 448,545,377,466.99/579,098.54
  6. Step 6: Final answer
    x = 774,557.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.