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Finding the Fourth Proportional to 3,828,807.07, 5,283,685.99 and 2,086,492.06

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Solution

The fourth proportional to 3,828,807.07, 5,283,685.99 and 2,086,492.06 is: 2,879,322.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828,807.07 : 5,283,685.99 = 2,086,492.06 : x
  2. Step 2: Convert to fraction form
    3,828,807.07/5,283,685.99 = 2,086,492.06/x
  3. Step 3: Cross multiply
    3,828,807.07x = 5,283,685.99 × 2,086,492.06
  4. Step 4: Simplify right side
    3,828,807.07x = 11,024,368,874,880.96
  5. Step 5: Solve for x
    x = 11,024,368,874,880.96/3,828,807.07
  6. Step 6: Final answer
    x = 2,879,322.11

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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.