Home / 819,131.20-1,130,406.30-456,578.04

Finding the Fourth Proportional to 819,131.20, 1,130,406.30 and 456,578.04

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Solution

The fourth proportional to 819,131.20, 1,130,406.30 and 456,578.04 is: 630,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,131.20 : 1,130,406.30 = 456,578.04 : x
  2. Step 2: Convert to fraction form
    819,131.20/1,130,406.30 = 456,578.04/x
  3. Step 3: Cross multiply
    819,131.20x = 1,130,406.30 × 456,578.04
  4. Step 4: Simplify right side
    819,131.20x = 516,118,697,096.68
  5. Step 5: Solve for x
    x = 516,118,697,096.68/819,131.20
  6. Step 6: Final answer
    x = 630,080.63

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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.