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Finding the Fourth Proportional to 3,498,709.71, 5,248,147.59 and 939,927.90

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Solution

The fourth proportional to 3,498,709.71, 5,248,147.59 and 939,927.90 is: 1,409,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498,709.71 : 5,248,147.59 = 939,927.90 : x
  2. Step 2: Convert to fraction form
    3,498,709.71/5,248,147.59 = 939,927.90/x
  3. Step 3: Cross multiply
    3,498,709.71x = 5,248,147.59 × 939,927.90
  4. Step 4: Simplify right side
    3,498,709.71x = 4,932,880,343,158.76
  5. Step 5: Solve for x
    x = 4,932,880,343,158.76/3,498,709.71
  6. Step 6: Final answer
    x = 1,409,914.15

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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.