Home / 579,030.37-868,661.51-199,964.95

Finding the Fourth Proportional to 579,030.37, 868,661.51 and 199,964.95

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Solution

The fourth proportional to 579,030.37, 868,661.51 and 199,964.95 is: 299,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,030.37 : 868,661.51 = 199,964.95 : x
  2. Step 2: Convert to fraction form
    579,030.37/868,661.51 = 199,964.95/x
  3. Step 3: Cross multiply
    579,030.37x = 868,661.51 × 199,964.95
  4. Step 4: Simplify right side
    579,030.37x = 173,701,855,913.99
  5. Step 5: Solve for x
    x = 173,701,855,913.99/579,030.37
  6. Step 6: Final answer
    x = 299,987.47

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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.