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Finding the Fourth Proportional to 655,569.18, 904,702.50 and 369,099.72

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Solution

The fourth proportional to 655,569.18, 904,702.50 and 369,099.72 is: 509,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,569.18 : 904,702.50 = 369,099.72 : x
  2. Step 2: Convert to fraction form
    655,569.18/904,702.50 = 369,099.72/x
  3. Step 3: Cross multiply
    655,569.18x = 904,702.50 × 369,099.72
  4. Step 4: Simplify right side
    655,569.18x = 333,925,439,433.30
  5. Step 5: Solve for x
    x = 333,925,439,433.30/655,569.18
  6. Step 6: Final answer
    x = 509,367.20

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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.