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Finding the Fourth Proportional to 502,673,607.05, 693,695,961.69 and 276,638,615.33

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Solution

The fourth proportional to 502,673,607.05, 693,695,961.69 and 276,638,615.33 is: 381,764,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,673,607.05 : 693,695,961.69 = 276,638,615.33 : x
  2. Step 2: Convert to fraction form
    502,673,607.05/693,695,961.69 = 276,638,615.33/x
  3. Step 3: Cross multiply
    502,673,607.05x = 693,695,961.69 × 276,638,615.33
  4. Step 4: Simplify right side
    502,673,607.05x = 191,903,090,304,655,552
  5. Step 5: Solve for x
    x = 191,903,090,304,655,552/502,673,607.05
  6. Step 6: Final answer
    x = 381,764,802.47

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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.