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Finding the Third Proportional to 428,892,312 and 936,438,258

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Solution

The third proportional to 428,892,312 and 936,438,258 is: 2,044,607,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,892,312 : 936,438,258 = 936,438,258 : x
  2. Step 2: Convert to fraction form
    428,892,312/936,438,258 = 936,438,258/x
  3. Step 3: Cross multiply
    428,892,312x = 936,438,258 × 936,438,258
  4. Step 4: Simplify right side
    428,892,312x = 876,916,611,046,074,624
  5. Step 5: Solve for x
    x = 876,916,611,046,074,624/428,892,312
  6. Step 6: Final answer
    x = 2,044,607,903.92

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.