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Finding the Fourth Proportional to 462,107.72, 637,688.52 and 258,157.76

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Solution

The fourth proportional to 462,107.72, 637,688.52 and 258,157.76 is: 356,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,107.72 : 637,688.52 = 258,157.76 : x
  2. Step 2: Convert to fraction form
    462,107.72/637,688.52 = 258,157.76/x
  3. Step 3: Cross multiply
    462,107.72x = 637,688.52 × 258,157.76
  4. Step 4: Simplify right side
    462,107.72x = 164,624,239,900.92
  5. Step 5: Solve for x
    x = 164,624,239,900.92/462,107.72
  6. Step 6: Final answer
    x = 356,246.46

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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.