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Finding the Third Proportional to 556,220 and 1,216,984

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Solution

The third proportional to 556,220 and 1,216,984 is: 2,662,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,220 : 1,216,984 = 1,216,984 : x
  2. Step 2: Convert to fraction form
    556,220/1,216,984 = 1,216,984/x
  3. Step 3: Cross multiply
    556,220x = 1,216,984 × 1,216,984
  4. Step 4: Simplify right side
    556,220x = 1,481,050,056,256
  5. Step 5: Solve for x
    x = 1,481,050,056,256/556,220
  6. Step 6: Final answer
    x = 2,662,705.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.