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Finding the Third Proportional to 509,787,445.50 and 787,201,024.50

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Solution

The third proportional to 509,787,445.50 and 787,201,024.50 is: 1,215,576,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,787,445.50 : 787,201,024.50 = 787,201,024.50 : x
  2. Step 2: Convert to fraction form
    509,787,445.50/787,201,024.50 = 787,201,024.50/x
  3. Step 3: Cross multiply
    509,787,445.50x = 787,201,024.50 × 787,201,024.50
  4. Step 4: Simplify right side
    509,787,445.50x = 619,685,452,973,849,600
  5. Step 5: Solve for x
    x = 619,685,452,973,849,600/509,787,445.50
  6. Step 6: Final answer
    x = 1,215,576,135.59

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.