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Finding the Fourth Proportional to 411,078.08, 567,379.26 and 249,899

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Solution

The fourth proportional to 411,078.08, 567,379.26 and 249,899 is: 344,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,078.08 : 567,379.26 = 249,899 : x
  2. Step 2: Convert to fraction form
    411,078.08/567,379.26 = 249,899/x
  3. Step 3: Cross multiply
    411,078.08x = 567,379.26 × 249,899
  4. Step 4: Simplify right side
    411,078.08x = 141,787,509,694.74
  5. Step 5: Solve for x
    x = 141,787,509,694.74/411,078.08
  6. Step 6: Final answer
    x = 344,916.25

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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.