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Finding the Fourth Proportional to 1,595,682.72, 2,201,824.08 and 916,619.04

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Solution

The fourth proportional to 1,595,682.72, 2,201,824.08 and 916,619.04 is: 1,264,809.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595,682.72 : 2,201,824.08 = 916,619.04 : x
  2. Step 2: Convert to fraction form
    1,595,682.72/2,201,824.08 = 916,619.04/x
  3. Step 3: Cross multiply
    1,595,682.72x = 2,201,824.08 × 916,619.04
  4. Step 4: Simplify right side
    1,595,682.72x = 2,018,233,874,458.48
  5. Step 5: Solve for x
    x = 2,018,233,874,458.48/1,595,682.72
  6. Step 6: Final answer
    x = 1,264,809.01

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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.