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Finding the Fourth Proportional to 425,016.86, 637,124.54 and 211,583.07

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Solution

The fourth proportional to 425,016.86, 637,124.54 and 211,583.07 is: 317,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,016.86 : 637,124.54 = 211,583.07 : x
  2. Step 2: Convert to fraction form
    425,016.86/637,124.54 = 211,583.07/x
  3. Step 3: Cross multiply
    425,016.86x = 637,124.54 × 211,583.07
  4. Step 4: Simplify right side
    425,016.86x = 134,804,765,087.62
  5. Step 5: Solve for x
    x = 134,804,765,087.62/425,016.86
  6. Step 6: Final answer
    x = 317,175.10

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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.