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Finding the Fourth Proportional to 894,803.06, 1,234,791.86 and 512,564.06

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Solution

The fourth proportional to 894,803.06, 1,234,791.86 and 512,564.06 is: 707,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,803.06 : 1,234,791.86 = 512,564.06 : x
  2. Step 2: Convert to fraction form
    894,803.06/1,234,791.86 = 512,564.06/x
  3. Step 3: Cross multiply
    894,803.06x = 1,234,791.86 × 512,564.06
  4. Step 4: Simplify right side
    894,803.06x = 632,909,929,016.55
  5. Step 5: Solve for x
    x = 632,909,929,016.55/894,803.06
  6. Step 6: Final answer
    x = 707,317.57

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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.