Home / 842,905.72-1,163,211.06-475,387.66

Finding the Fourth Proportional to 842,905.72, 1,163,211.06 and 475,387.66

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Solution

The fourth proportional to 842,905.72, 1,163,211.06 and 475,387.66 is: 656,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,905.72 : 1,163,211.06 = 475,387.66 : x
  2. Step 2: Convert to fraction form
    842,905.72/1,163,211.06 = 475,387.66/x
  3. Step 3: Cross multiply
    842,905.72x = 1,163,211.06 × 475,387.66
  4. Step 4: Simplify right side
    842,905.72x = 552,976,183,899.52
  5. Step 5: Solve for x
    x = 552,976,183,899.52/842,905.72
  6. Step 6: Final answer
    x = 656,035.63

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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.