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Finding the Fourth Proportional to 1,893,522.80, 2,839,409.40 and 828,016.40

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Solution

The fourth proportional to 1,893,522.80, 2,839,409.40 and 828,016.40 is: 1,241,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893,522.80 : 2,839,409.40 = 828,016.40 : x
  2. Step 2: Convert to fraction form
    1,893,522.80/2,839,409.40 = 828,016.40/x
  3. Step 3: Cross multiply
    1,893,522.80x = 2,839,409.40 × 828,016.40
  4. Step 4: Simplify right side
    1,893,522.80x = 2,351,077,549,514.16
  5. Step 5: Solve for x
    x = 2,351,077,549,514.16/1,893,522.80
  6. Step 6: Final answer
    x = 1,241,642.06

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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.