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Finding the Fourth Proportional to 898,557,679.89, 1,347,981,349.05 and 276,772,621.14

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Solution

The fourth proportional to 898,557,679.89, 1,347,981,349.05 and 276,772,621.14 is: 415,203,541.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,557,679.89 : 1,347,981,349.05 = 276,772,621.14 : x
  2. Step 2: Convert to fraction form
    898,557,679.89/1,347,981,349.05 = 276,772,621.14/x
  3. Step 3: Cross multiply
    898,557,679.89x = 1,347,981,349.05 × 276,772,621.14
  4. Step 4: Simplify right side
    898,557,679.89x = 373,084,331,224,401,728
  5. Step 5: Solve for x
    x = 373,084,331,224,401,728/898,557,679.89
  6. Step 6: Final answer
    x = 415,203,541.83

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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.