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Finding the Fourth Proportional to 488,407,364.39, 674,006,419.80 and 265,389,045.26

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Solution

The fourth proportional to 488,407,364.39, 674,006,419.80 and 265,389,045.26 is: 366,239,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,407,364.39 : 674,006,419.80 = 265,389,045.26 : x
  2. Step 2: Convert to fraction form
    488,407,364.39/674,006,419.80 = 265,389,045.26/x
  3. Step 3: Cross multiply
    488,407,364.39x = 674,006,419.80 × 265,389,045.26
  4. Step 4: Simplify right side
    488,407,364.39x = 178,873,920,246,462,720
  5. Step 5: Solve for x
    x = 178,873,920,246,462,720/488,407,364.39
  6. Step 6: Final answer
    x = 366,239,195.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.