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Finding the Fourth Proportional to 1,556,179, 2,147,527.02 and 840,787

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Solution

The fourth proportional to 1,556,179, 2,147,527.02 and 840,787 is: 1,160,286.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,179 : 2,147,527.02 = 840,787 : x
  2. Step 2: Convert to fraction form
    1,556,179/2,147,527.02 = 840,787/x
  3. Step 3: Cross multiply
    1,556,179x = 2,147,527.02 × 840,787
  4. Step 4: Simplify right side
    1,556,179x = 1,805,612,800,564.74
  5. Step 5: Solve for x
    x = 1,805,612,800,564.74/1,556,179
  6. Step 6: Final answer
    x = 1,160,286.06

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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.