Home / 602,413,826.34-831,660,947.80-421,639,039.20

Finding the Fourth Proportional to 602,413,826.34, 831,660,947.80 and 421,639,039.20

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Solution

The fourth proportional to 602,413,826.34, 831,660,947.80 and 421,639,039.20 is: 582,092,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,413,826.34 : 831,660,947.80 = 421,639,039.20 : x
  2. Step 2: Convert to fraction form
    602,413,826.34/831,660,947.80 = 421,639,039.20/x
  3. Step 3: Cross multiply
    602,413,826.34x = 831,660,947.80 × 421,639,039.20
  4. Step 4: Simplify right side
    602,413,826.34x = 350,660,722,970,553,344
  5. Step 5: Solve for x
    x = 350,660,722,970,553,344/602,413,826.34
  6. Step 6: Final answer
    x = 582,092,753.58

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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.