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Finding the Fourth Proportional to 3,886,065.81, 5,829,166.76 and 1,490,046.93

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Solution

The fourth proportional to 3,886,065.81, 5,829,166.76 and 1,490,046.93 is: 2,235,096.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886,065.81 : 5,829,166.76 = 1,490,046.93 : x
  2. Step 2: Convert to fraction form
    3,886,065.81/5,829,166.76 = 1,490,046.93/x
  3. Step 3: Cross multiply
    3,886,065.81x = 5,829,166.76 × 1,490,046.93
  4. Step 4: Simplify right side
    3,886,065.81x = 8,685,732,027,745.81
  5. Step 5: Solve for x
    x = 8,685,732,027,745.81/3,886,065.81
  6. Step 6: Final answer
    x = 2,235,096.48

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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.