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Finding the Fourth Proportional to 3,709,581.20, 5,564,371.80 and 3,343,477.40

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Solution

The fourth proportional to 3,709,581.20, 5,564,371.80 and 3,343,477.40 is: 5,015,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709,581.20 : 5,564,371.80 = 3,343,477.40 : x
  2. Step 2: Convert to fraction form
    3,709,581.20/5,564,371.80 = 3,343,477.40/x
  3. Step 3: Cross multiply
    3,709,581.20x = 5,564,371.80 × 3,343,477.40
  4. Step 4: Simplify right side
    3,709,581.20x = 18,604,351,358,497.32
  5. Step 5: Solve for x
    x = 18,604,351,358,497.32/3,709,581.20
  6. Step 6: Final answer
    x = 5,015,216.10

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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.