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Finding the Fourth Proportional to 612,754,797.76, 845,597,608.32 and 348,436,833.28

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Solution

The fourth proportional to 612,754,797.76, 845,597,608.32 and 348,436,833.28 is: 480,840,548.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,754,797.76 : 845,597,608.32 = 348,436,833.28 : x
  2. Step 2: Convert to fraction form
    612,754,797.76/845,597,608.32 = 348,436,833.28/x
  3. Step 3: Cross multiply
    612,754,797.76x = 845,597,608.32 × 348,436,833.28
  4. Step 4: Simplify right side
    612,754,797.76x = 294,637,352,872,162,560
  5. Step 5: Solve for x
    x = 294,637,352,872,162,560/612,754,797.76
  6. Step 6: Final answer
    x = 480,840,548.21

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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.