Home / 427,624.17-641,557.35-214,134.36

Finding the Fourth Proportional to 427,624.17, 641,557.35 and 214,134.36

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Solution

The fourth proportional to 427,624.17, 641,557.35 and 214,134.36 is: 321,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,624.17 : 641,557.35 = 214,134.36 : x
  2. Step 2: Convert to fraction form
    427,624.17/641,557.35 = 214,134.36/x
  3. Step 3: Cross multiply
    427,624.17x = 641,557.35 × 214,134.36
  4. Step 4: Simplify right side
    427,624.17x = 137,379,472,545.55
  5. Step 5: Solve for x
    x = 137,379,472,545.55/427,624.17
  6. Step 6: Final answer
    x = 321,262.18

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1.5x scale

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.