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Finding the Fourth Proportional to 6,604,640.16, 9,105,965.64 and 4,277,420.52

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Solution

The fourth proportional to 6,604,640.16, 9,105,965.64 and 4,277,420.52 is: 5,897,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604,640.16 : 9,105,965.64 = 4,277,420.52 : x
  2. Step 2: Convert to fraction form
    6,604,640.16/9,105,965.64 = 4,277,420.52/x
  3. Step 3: Cross multiply
    6,604,640.16x = 9,105,965.64 × 4,277,420.52
  4. Step 4: Simplify right side
    6,604,640.16x = 38,950,044,282,950.93
  5. Step 5: Solve for x
    x = 38,950,044,282,950.93/6,604,640.16
  6. Step 6: Final answer
    x = 5,897,375.68

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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.