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Finding the Fourth Proportional to 627,047.41, 865,324.76 and 340,567.72

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Solution

The fourth proportional to 627,047.41, 865,324.76 and 340,567.72 is: 469,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,047.41 : 865,324.76 = 340,567.72 : x
  2. Step 2: Convert to fraction form
    627,047.41/865,324.76 = 340,567.72/x
  3. Step 3: Cross multiply
    627,047.41x = 865,324.76 × 340,567.72
  4. Step 4: Simplify right side
    627,047.41x = 294,701,680,572.75
  5. Step 5: Solve for x
    x = 294,701,680,572.75/627,047.41
  6. Step 6: Final answer
    x = 469,983.09

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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.