Home / 676,203.72-933,161.52-421,555.92

Finding the Fourth Proportional to 676,203.72, 933,161.52 and 421,555.92

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Solution

The fourth proportional to 676,203.72, 933,161.52 and 421,555.92 is: 581,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,203.72 : 933,161.52 = 421,555.92 : x
  2. Step 2: Convert to fraction form
    676,203.72/933,161.52 = 421,555.92/x
  3. Step 3: Cross multiply
    676,203.72x = 933,161.52 × 421,555.92
  4. Step 4: Simplify right side
    676,203.72x = 393,379,763,072.20
  5. Step 5: Solve for x
    x = 393,379,763,072.20/676,203.72
  6. Step 6: Final answer
    x = 581,747.41

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1.5x scale

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.