Home / 685,690.66-1,024,365.99-443,834.20

Finding the Fourth Proportional to 685,690.66, 1,024,365.99 and 443,834.20

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Solution

The fourth proportional to 685,690.66, 1,024,365.99 and 443,834.20 is: 663,052.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,690.66 : 1,024,365.99 = 443,834.20 : x
  2. Step 2: Convert to fraction form
    685,690.66/1,024,365.99 = 443,834.20/x
  3. Step 3: Cross multiply
    685,690.66x = 1,024,365.99 × 443,834.20
  4. Step 4: Simplify right side
    685,690.66x = 454,648,659,678.86
  5. Step 5: Solve for x
    x = 454,648,659,678.86/685,690.66
  6. Step 6: Final answer
    x = 663,052.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.