Home / 407,730.18-611,547.72-108,234.03

Finding the Fourth Proportional to 407,730.18, 611,547.72 and 108,234.03

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Solution

The fourth proportional to 407,730.18, 611,547.72 and 108,234.03 is: 162,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,730.18 : 611,547.72 = 108,234.03 : x
  2. Step 2: Convert to fraction form
    407,730.18/611,547.72 = 108,234.03/x
  3. Step 3: Cross multiply
    407,730.18x = 611,547.72 × 108,234.03
  4. Step 4: Simplify right side
    407,730.18x = 66,190,274,272.91
  5. Step 5: Solve for x
    x = 66,190,274,272.91/407,730.18
  6. Step 6: Final answer
    x = 162,338.42

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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.