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Finding the Third Proportional to 368,358 and 553,904

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Solution

The third proportional to 368,358 and 553,904 is: 832,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,358 : 553,904 = 553,904 : x
  2. Step 2: Convert to fraction form
    368,358/553,904 = 553,904/x
  3. Step 3: Cross multiply
    368,358x = 553,904 × 553,904
  4. Step 4: Simplify right side
    368,358x = 306,809,641,216
  5. Step 5: Solve for x
    x = 306,809,641,216/368,358
  6. Step 6: Final answer
    x = 832,911.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.