Home / 828,277.60-1,242,416.40-799,409.20

Finding the Fourth Proportional to 828,277.60, 1,242,416.40 and 799,409.20

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Solution

The fourth proportional to 828,277.60, 1,242,416.40 and 799,409.20 is: 1,199,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,277.60 : 1,242,416.40 = 799,409.20 : x
  2. Step 2: Convert to fraction form
    828,277.60/1,242,416.40 = 799,409.20/x
  3. Step 3: Cross multiply
    828,277.60x = 1,242,416.40 × 799,409.20
  4. Step 4: Simplify right side
    828,277.60x = 993,199,100,390.88
  5. Step 5: Solve for x
    x = 993,199,100,390.88/828,277.60
  6. Step 6: Final answer
    x = 1,199,113.80

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Similar ratio
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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.