Home / 890,996.80-1,336,495.20-828,011.20

Finding the Fourth Proportional to 890,996.80, 1,336,495.20 and 828,011.20

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Solution

The fourth proportional to 890,996.80, 1,336,495.20 and 828,011.20 is: 1,242,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,996.80 : 1,336,495.20 = 828,011.20 : x
  2. Step 2: Convert to fraction form
    890,996.80/1,336,495.20 = 828,011.20/x
  3. Step 3: Cross multiply
    890,996.80x = 1,336,495.20 × 828,011.20
  4. Step 4: Simplify right side
    890,996.80x = 1,106,632,994,346.24
  5. Step 5: Solve for x
    x = 1,106,632,994,346.24/890,996.80
  6. Step 6: Final answer
    x = 1,242,016.80

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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.