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Finding the Fourth Proportional to 552,684.11, 762,702.59 and 310,966.97

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Solution

The fourth proportional to 552,684.11, 762,702.59 and 310,966.97 is: 429,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,684.11 : 762,702.59 = 310,966.97 : x
  2. Step 2: Convert to fraction form
    552,684.11/762,702.59 = 310,966.97/x
  3. Step 3: Cross multiply
    552,684.11x = 762,702.59 × 310,966.97
  4. Step 4: Simplify right side
    552,684.11x = 237,175,310,387.36
  5. Step 5: Solve for x
    x = 237,175,310,387.36/552,684.11
  6. Step 6: Final answer
    x = 429,133.58

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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.