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Finding the Third Proportional to 713,216 and 1,538,784

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Solution

The third proportional to 713,216 and 1,538,784 is: 3,319,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,216 : 1,538,784 = 1,538,784 : x
  2. Step 2: Convert to fraction form
    713,216/1,538,784 = 1,538,784/x
  3. Step 3: Cross multiply
    713,216x = 1,538,784 × 1,538,784
  4. Step 4: Simplify right side
    713,216x = 2,367,856,198,656
  5. Step 5: Solve for x
    x = 2,367,856,198,656/713,216
  6. Step 6: Final answer
    x = 3,319,970.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.