Home / 528,679.20-727,733.49-456,311.72

Finding the Fourth Proportional to 528,679.20, 727,733.49 and 456,311.72

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Solution

The fourth proportional to 528,679.20, 727,733.49 and 456,311.72 is: 628,118.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,679.20 : 727,733.49 = 456,311.72 : x
  2. Step 2: Convert to fraction form
    528,679.20/727,733.49 = 456,311.72/x
  3. Step 3: Cross multiply
    528,679.20x = 727,733.49 × 456,311.72
  4. Step 4: Simplify right side
    528,679.20x = 332,073,320,523.50
  5. Step 5: Solve for x
    x = 332,073,320,523.50/528,679.20
  6. Step 6: Final answer
    x = 628,118.75

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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.