Home / 356,913.34-534,318.15-312,626.59

Finding the Fourth Proportional to 356,913.34, 534,318.15 and 312,626.59

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Solution

The fourth proportional to 356,913.34, 534,318.15 and 312,626.59 is: 468,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,913.34 : 534,318.15 = 312,626.59 : x
  2. Step 2: Convert to fraction form
    356,913.34/534,318.15 = 312,626.59/x
  3. Step 3: Cross multiply
    356,913.34x = 534,318.15 × 312,626.59
  4. Step 4: Simplify right side
    356,913.34x = 167,042,061,046.16
  5. Step 5: Solve for x
    x = 167,042,061,046.16/356,913.34
  6. Step 6: Final answer
    x = 468,018.55

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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.