Home / 928,861.20-1,393,291.80-456,469.20

Finding the Fourth Proportional to 928,861.20, 1,393,291.80 and 456,469.20

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Solution

The fourth proportional to 928,861.20, 1,393,291.80 and 456,469.20 is: 684,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,861.20 : 1,393,291.80 = 456,469.20 : x
  2. Step 2: Convert to fraction form
    928,861.20/1,393,291.80 = 456,469.20/x
  3. Step 3: Cross multiply
    928,861.20x = 1,393,291.80 × 456,469.20
  4. Step 4: Simplify right side
    928,861.20x = 635,994,793,312.56
  5. Step 5: Solve for x
    x = 635,994,793,312.56/928,861.20
  6. Step 6: Final answer
    x = 684,703.80

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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.