Home / 677,221.58-934,561.67-371,310.91

Finding the Fourth Proportional to 677,221.58, 934,561.67 and 371,310.91

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Solution

The fourth proportional to 677,221.58, 934,561.67 and 371,310.91 is: 512,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,221.58 : 934,561.67 = 371,310.91 : x
  2. Step 2: Convert to fraction form
    677,221.58/934,561.67 = 371,310.91/x
  3. Step 3: Cross multiply
    677,221.58x = 934,561.67 × 371,310.91
  4. Step 4: Simplify right side
    677,221.58x = 347,012,939,945.86
  5. Step 5: Solve for x
    x = 347,012,939,945.86/677,221.58
  6. Step 6: Final answer
    x = 512,406.79

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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.