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Finding the Fourth Proportional to 3,605,391.86, 4,975,432.98 and 1,973,786

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Solution

The fourth proportional to 3,605,391.86, 4,975,432.98 and 1,973,786 is: 2,723,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605,391.86 : 4,975,432.98 = 1,973,786 : x
  2. Step 2: Convert to fraction form
    3,605,391.86/4,975,432.98 = 1,973,786/x
  3. Step 3: Cross multiply
    3,605,391.86x = 4,975,432.98 × 1,973,786
  4. Step 4: Simplify right side
    3,605,391.86x = 9,820,439,959,862.28
  5. Step 5: Solve for x
    x = 9,820,439,959,862.28/3,605,391.86
  6. Step 6: Final answer
    x = 2,723,820.42

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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.