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Finding the Fourth Proportional to 602,172.06, 903,409.97 and 425,025.06

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Solution

The fourth proportional to 602,172.06, 903,409.97 and 425,025.06 is: 637,644.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,172.06 : 903,409.97 = 425,025.06 : x
  2. Step 2: Convert to fraction form
    602,172.06/903,409.97 = 425,025.06/x
  3. Step 3: Cross multiply
    602,172.06x = 903,409.97 × 425,025.06
  4. Step 4: Simplify right side
    602,172.06x = 383,971,874,578.72
  5. Step 5: Solve for x
    x = 383,971,874,578.72/602,172.06
  6. Step 6: Final answer
    x = 637,644.79

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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.