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Finding the Third Proportional to 1,317,835,484 and 1,990,258,916

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Solution

The third proportional to 1,317,835,484 and 1,990,258,916 is: 3,005,785,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,835,484 : 1,990,258,916 = 1,990,258,916 : x
  2. Step 2: Convert to fraction form
    1,317,835,484/1,990,258,916 = 1,990,258,916/x
  3. Step 3: Cross multiply
    1,317,835,484x = 1,990,258,916 × 1,990,258,916
  4. Step 4: Simplify right side
    1,317,835,484x = 3,961,130,552,717,495,296
  5. Step 5: Solve for x
    x = 3,961,130,552,717,495,296/1,317,835,484
  6. Step 6: Final answer
    x = 3,005,785,320.56

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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.