Home / 386,498.66-579,913.23-199,641.38

Finding the Fourth Proportional to 386,498.66, 579,913.23 and 199,641.38

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Solution

The fourth proportional to 386,498.66, 579,913.23 and 199,641.38 is: 299,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,498.66 : 579,913.23 = 199,641.38 : x
  2. Step 2: Convert to fraction form
    386,498.66/579,913.23 = 199,641.38/x
  3. Step 3: Cross multiply
    386,498.66x = 579,913.23 × 199,641.38
  4. Step 4: Simplify right side
    386,498.66x = 115,774,676,792.57
  5. Step 5: Solve for x
    x = 115,774,676,792.57/386,498.66
  6. Step 6: Final answer
    x = 299,547.42

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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.