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Finding the Fourth Proportional to 4,932,391.72, 7,398,420.80 and 1,737,434.40

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Solution

The fourth proportional to 4,932,391.72, 7,398,420.80 and 1,737,434.40 is: 2,606,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932,391.72 : 7,398,420.80 = 1,737,434.40 : x
  2. Step 2: Convert to fraction form
    4,932,391.72/7,398,420.80 = 1,737,434.40/x
  3. Step 3: Cross multiply
    4,932,391.72x = 7,398,420.80 × 1,737,434.40
  4. Step 4: Simplify right side
    4,932,391.72x = 12,854,270,803,595.52
  5. Step 5: Solve for x
    x = 12,854,270,803,595.52/4,932,391.72
  6. Step 6: Final answer
    x = 2,606,092.85

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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.