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Finding the Fourth Proportional to 3,437,804.81, 4,743,892.91 and 1,987,593.71

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Solution

The fourth proportional to 3,437,804.81, 4,743,892.91 and 1,987,593.71 is: 2,742,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437,804.81 : 4,743,892.91 = 1,987,593.71 : x
  2. Step 2: Convert to fraction form
    3,437,804.81/4,743,892.91 = 1,987,593.71/x
  3. Step 3: Cross multiply
    3,437,804.81x = 4,743,892.91 × 1,987,593.71
  4. Step 4: Simplify right side
    3,437,804.81x = 9,428,931,698,891.63
  5. Step 5: Solve for x
    x = 9,428,931,698,891.63/3,437,804.81
  6. Step 6: Final answer
    x = 2,742,718.75

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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.