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Finding the Fourth Proportional to 425,018.09, 637,101.17 and 197,473.57

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Solution

The fourth proportional to 425,018.09, 637,101.17 and 197,473.57 is: 296,012.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,018.09 : 637,101.17 = 197,473.57 : x
  2. Step 2: Convert to fraction form
    425,018.09/637,101.17 = 197,473.57/x
  3. Step 3: Cross multiply
    425,018.09x = 637,101.17 × 197,473.57
  4. Step 4: Simplify right side
    425,018.09x = 125,810,642,491.08
  5. Step 5: Solve for x
    x = 125,810,642,491.08/425,018.09
  6. Step 6: Final answer
    x = 296,012.44

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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.