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Finding the Fourth Proportional to 567,955.01, 783,780.15 and 309,837.47

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Solution

The fourth proportional to 567,955.01, 783,780.15 and 309,837.47 is: 427,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,955.01 : 783,780.15 = 309,837.47 : x
  2. Step 2: Convert to fraction form
    567,955.01/783,780.15 = 309,837.47/x
  3. Step 3: Cross multiply
    567,955.01x = 783,780.15 × 309,837.47
  4. Step 4: Simplify right side
    567,955.01x = 242,844,458,621.14
  5. Step 5: Solve for x
    x = 242,844,458,621.14/567,955.01
  6. Step 6: Final answer
    x = 427,576.93

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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.