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Finding the Fourth Proportional to 3,886,662.86, 5,829,784.08 and 1,190,995.84

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Solution

The fourth proportional to 3,886,662.86, 5,829,784.08 and 1,190,995.84 is: 1,786,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886,662.86 : 5,829,784.08 = 1,190,995.84 : x
  2. Step 2: Convert to fraction form
    3,886,662.86/5,829,784.08 = 1,190,995.84/x
  3. Step 3: Cross multiply
    3,886,662.86x = 5,829,784.08 × 1,190,995.84
  4. Step 4: Simplify right side
    3,886,662.86x = 6,943,248,587,378.23
  5. Step 5: Solve for x
    x = 6,943,248,587,378.23/3,886,662.86
  6. Step 6: Final answer
    x = 1,786,429.35

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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.