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Finding the Fourth Proportional to 472,137.93, 707,614.35 and 371,902.25

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Solution

The fourth proportional to 472,137.93, 707,614.35 and 371,902.25 is: 557,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,137.93 : 707,614.35 = 371,902.25 : x
  2. Step 2: Convert to fraction form
    472,137.93/707,614.35 = 371,902.25/x
  3. Step 3: Cross multiply
    472,137.93x = 707,614.35 × 371,902.25
  4. Step 4: Simplify right side
    472,137.93x = 263,163,369,271.69
  5. Step 5: Solve for x
    x = 263,163,369,271.69/472,137.93
  6. Step 6: Final answer
    x = 557,386.63

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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.