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Finding the Third Proportional to 249,056 and 386,708

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Solution

The third proportional to 249,056 and 386,708 is: 600,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,056 : 386,708 = 386,708 : x
  2. Step 2: Convert to fraction form
    249,056/386,708 = 386,708/x
  3. Step 3: Cross multiply
    249,056x = 386,708 × 386,708
  4. Step 4: Simplify right side
    249,056x = 149,543,077,264
  5. Step 5: Solve for x
    x = 149,543,077,264/249,056
  6. Step 6: Final answer
    x = 600,439.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.