Home / 453,440.15-679,412.89-263,366.96

Finding the Fourth Proportional to 453,440.15, 679,412.89 and 263,366.96

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Solution

The fourth proportional to 453,440.15, 679,412.89 and 263,366.96 is: 394,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,440.15 : 679,412.89 = 263,366.96 : x
  2. Step 2: Convert to fraction form
    453,440.15/679,412.89 = 263,366.96/x
  3. Step 3: Cross multiply
    453,440.15x = 679,412.89 × 263,366.96
  4. Step 4: Simplify right side
    453,440.15x = 178,934,902,874.82
  5. Step 5: Solve for x
    x = 178,934,902,874.82/453,440.15
  6. Step 6: Final answer
    x = 394,616.36

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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.