Home / 828,954.80-1,243,432.20-451,041.20

Finding the Fourth Proportional to 828,954.80, 1,243,432.20 and 451,041.20

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Solution

The fourth proportional to 828,954.80, 1,243,432.20 and 451,041.20 is: 676,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,954.80 : 1,243,432.20 = 451,041.20 : x
  2. Step 2: Convert to fraction form
    828,954.80/1,243,432.20 = 451,041.20/x
  3. Step 3: Cross multiply
    828,954.80x = 1,243,432.20 × 451,041.20
  4. Step 4: Simplify right side
    828,954.80x = 560,839,151,606.64
  5. Step 5: Solve for x
    x = 560,839,151,606.64/828,954.80
  6. Step 6: Final answer
    x = 676,561.80

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Double scale
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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.