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Finding the Third Proportional to 368,788 and 556,572

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Solution

The third proportional to 368,788 and 556,572 is: 839,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,788 : 556,572 = 556,572 : x
  2. Step 2: Convert to fraction form
    368,788/556,572 = 556,572/x
  3. Step 3: Cross multiply
    368,788x = 556,572 × 556,572
  4. Step 4: Simplify right side
    368,788x = 309,772,391,184
  5. Step 5: Solve for x
    x = 309,772,391,184/368,788
  6. Step 6: Final answer
    x = 839,974.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.