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Finding the Fourth Proportional to 461,970, 637,518.60 and 250,002

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Solution

The fourth proportional to 461,970, 637,518.60 and 250,002 is: 345,002.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,970 : 637,518.60 = 250,002 : x
  2. Step 2: Convert to fraction form
    461,970/637,518.60 = 250,002/x
  3. Step 3: Cross multiply
    461,970x = 637,518.60 × 250,002
  4. Step 4: Simplify right side
    461,970x = 159,380,925,037.20
  5. Step 5: Solve for x
    x = 159,380,925,037.20/461,970
  6. Step 6: Final answer
    x = 345,002.76

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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.