Home / 679,378.92-937,520.10-377,566.44

Finding the Fourth Proportional to 679,378.92, 937,520.10 and 377,566.44

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Solution

The fourth proportional to 679,378.92, 937,520.10 and 377,566.44 is: 521,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,378.92 : 937,520.10 = 377,566.44 : x
  2. Step 2: Convert to fraction form
    679,378.92/937,520.10 = 377,566.44/x
  3. Step 3: Cross multiply
    679,378.92x = 937,520.10 × 377,566.44
  4. Step 4: Simplify right side
    679,378.92x = 353,976,126,585.44
  5. Step 5: Solve for x
    x = 353,976,126,585.44/679,378.92
  6. Step 6: Final answer
    x = 521,029.01

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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.