Home / 807,137.04-1,113,818.61-485,024.75

Finding the Fourth Proportional to 807,137.04, 1,113,818.61 and 485,024.75

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Solution

The fourth proportional to 807,137.04, 1,113,818.61 and 485,024.75 is: 669,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,137.04 : 1,113,818.61 = 485,024.75 : x
  2. Step 2: Convert to fraction form
    807,137.04/1,113,818.61 = 485,024.75/x
  3. Step 3: Cross multiply
    807,137.04x = 1,113,818.61 × 485,024.75
  4. Step 4: Simplify right side
    807,137.04x = 540,229,592,860.60
  5. Step 5: Solve for x
    x = 540,229,592,860.60/807,137.04
  6. Step 6: Final answer
    x = 669,315.82

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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.