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Finding the Fourth Proportional to 309,083.71, 426,506.83 and 174,947.71

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Solution

The fourth proportional to 309,083.71, 426,506.83 and 174,947.71 is: 241,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,083.71 : 426,506.83 = 174,947.71 : x
  2. Step 2: Convert to fraction form
    309,083.71/426,506.83 = 174,947.71/x
  3. Step 3: Cross multiply
    309,083.71x = 426,506.83 × 174,947.71
  4. Step 4: Simplify right side
    309,083.71x = 74,616,393,207.86
  5. Step 5: Solve for x
    x = 74,616,393,207.86/309,083.71
  6. Step 6: Final answer
    x = 241,411.60

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1.5x scale

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.