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Finding the Third Proportional to 298,648,938.50 and 415,247,477.50

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Solution

The third proportional to 298,648,938.50 and 415,247,477.50 is: 577,368,426.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,648,938.50 : 415,247,477.50 = 415,247,477.50 : x
  2. Step 2: Convert to fraction form
    298,648,938.50/415,247,477.50 = 415,247,477.50/x
  3. Step 3: Cross multiply
    298,648,938.50x = 415,247,477.50 × 415,247,477.50
  4. Step 4: Simplify right side
    298,648,938.50x = 172,430,467,570,112,992
  5. Step 5: Solve for x
    x = 172,430,467,570,112,992/298,648,938.50
  6. Step 6: Final answer
    x = 577,368,426.07

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.