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Finding the Fourth Proportional to 441,632,953.69, 609,442,978.62 and 240,696,172.63

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Solution

The fourth proportional to 441,632,953.69, 609,442,978.62 and 240,696,172.63 is: 332,154,996.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,632,953.69 : 609,442,978.62 = 240,696,172.63 : x
  2. Step 2: Convert to fraction form
    441,632,953.69/609,442,978.62 = 240,696,172.63/x
  3. Step 3: Cross multiply
    441,632,953.69x = 609,442,978.62 × 240,696,172.63
  4. Step 4: Simplify right side
    441,632,953.69x = 146,690,592,390,060,928
  5. Step 5: Solve for x
    x = 146,690,592,390,060,928/441,632,953.69
  6. Step 6: Final answer
    x = 332,154,996.96

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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.