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Finding the Fourth Proportional to 609,322.14, 913,386.65 and 254,437.65

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Solution

The fourth proportional to 609,322.14, 913,386.65 and 254,437.65 is: 381,407.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,322.14 : 913,386.65 = 254,437.65 : x
  2. Step 2: Convert to fraction form
    609,322.14/913,386.65 = 254,437.65/x
  3. Step 3: Cross multiply
    609,322.14x = 913,386.65 × 254,437.65
  4. Step 4: Simplify right side
    609,322.14x = 232,399,951,495.18
  5. Step 5: Solve for x
    x = 232,399,951,495.18/609,322.14
  6. Step 6: Final answer
    x = 381,407.36

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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.