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Finding the Third Proportional to 333,388 and 718,900

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Solution

The third proportional to 333,388 and 718,900 is: 1,550,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,388 : 718,900 = 718,900 : x
  2. Step 2: Convert to fraction form
    333,388/718,900 = 718,900/x
  3. Step 3: Cross multiply
    333,388x = 718,900 × 718,900
  4. Step 4: Simplify right side
    333,388x = 516,817,210,000
  5. Step 5: Solve for x
    x = 516,817,210,000/333,388
  6. Step 6: Final answer
    x = 1,550,197.40

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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.