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Finding the Fourth Proportional to 431,796,161.60, 646,737,648.60 and 374,400,533.60

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Solution

The fourth proportional to 431,796,161.60, 646,737,648.60 and 374,400,533.60 is: 560,771,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,796,161.60 : 646,737,648.60 = 374,400,533.60 : x
  2. Step 2: Convert to fraction form
    431,796,161.60/646,737,648.60 = 374,400,533.60/x
  3. Step 3: Cross multiply
    431,796,161.60x = 646,737,648.60 × 374,400,533.60
  4. Step 4: Simplify right side
    431,796,161.60x = 242,138,920,735,049,312
  5. Step 5: Solve for x
    x = 242,138,920,735,049,312/431,796,161.60
  6. Step 6: Final answer
    x = 560,771,359.89

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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.