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Finding the Fourth Proportional to 542,658,510.79, 814,322,574.92 and 251,471,358.07

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Solution

The fourth proportional to 542,658,510.79, 814,322,574.92 and 251,471,358.07 is: 377,362,189.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,658,510.79 : 814,322,574.92 = 251,471,358.07 : x
  2. Step 2: Convert to fraction form
    542,658,510.79/814,322,574.92 = 251,471,358.07/x
  3. Step 3: Cross multiply
    542,658,510.79x = 814,322,574.92 × 251,471,358.07
  4. Step 4: Simplify right side
    542,658,510.79x = 204,778,803,820,784,608
  5. Step 5: Solve for x
    x = 204,778,803,820,784,608/542,658,510.79
  6. Step 6: Final answer
    x = 377,362,189.57

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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.