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Finding the Fourth Proportional to 386,902,177.51, 533,910,978.93 and 236,446,545.70

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Solution

The fourth proportional to 386,902,177.51, 533,910,978.93 and 236,446,545.70 is: 326,287,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,902,177.51 : 533,910,978.93 = 236,446,545.70 : x
  2. Step 2: Convert to fraction form
    386,902,177.51/533,910,978.93 = 236,446,545.70/x
  3. Step 3: Cross multiply
    386,902,177.51x = 533,910,978.93 × 236,446,545.70
  4. Step 4: Simplify right side
    386,902,177.51x = 126,241,406,678,695,696
  5. Step 5: Solve for x
    x = 126,241,406,678,695,696/386,902,177.51
  6. Step 6: Final answer
    x = 326,287,661.37

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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.