Home / 873,795.38-1,205,760.85-486,581.56

Finding the Fourth Proportional to 873,795.38, 1,205,760.85 and 486,581.56

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Solution

The fourth proportional to 873,795.38, 1,205,760.85 and 486,581.56 is: 671,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,795.38 : 1,205,760.85 = 486,581.56 : x
  2. Step 2: Convert to fraction form
    873,795.38/1,205,760.85 = 486,581.56/x
  3. Step 3: Cross multiply
    873,795.38x = 1,205,760.85 × 486,581.56
  4. Step 4: Simplify right side
    873,795.38x = 586,701,000,668.50
  5. Step 5: Solve for x
    x = 586,701,000,668.50/873,795.38
  6. Step 6: Final answer
    x = 671,439.81

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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.