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Finding the Fourth Proportional to 754,880.64, 1,041,737.76 and 415,369.92

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Solution

The fourth proportional to 754,880.64, 1,041,737.76 and 415,369.92 is: 573,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,880.64 : 1,041,737.76 = 415,369.92 : x
  2. Step 2: Convert to fraction form
    754,880.64/1,041,737.76 = 415,369.92/x
  3. Step 3: Cross multiply
    754,880.64x = 1,041,737.76 × 415,369.92
  4. Step 4: Simplify right side
    754,880.64x = 432,706,530,032.18
  5. Step 5: Solve for x
    x = 432,706,530,032.18/754,880.64
  6. Step 6: Final answer
    x = 573,211.85

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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.