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Finding the Fourth Proportional to 413,798,612.80, 620,648,152.80 and 171,436,244.80

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Solution

The fourth proportional to 413,798,612.80, 620,648,152.80 and 171,436,244.80 is: 257,133,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,798,612.80 : 620,648,152.80 = 171,436,244.80 : x
  2. Step 2: Convert to fraction form
    413,798,612.80/620,648,152.80 = 171,436,244.80/x
  3. Step 3: Cross multiply
    413,798,612.80x = 620,648,152.80 × 171,436,244.80
  4. Step 4: Simplify right side
    413,798,612.80x = 106,401,588,658,088,608
  5. Step 5: Solve for x
    x = 106,401,588,658,088,608/413,798,612.80
  6. Step 6: Final answer
    x = 257,133,749.04

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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.