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Finding the Fourth Proportional to 1,821,706.30, 2,732,559.45 and 874,848.70

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Solution

The fourth proportional to 1,821,706.30, 2,732,559.45 and 874,848.70 is: 1,312,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,706.30 : 2,732,559.45 = 874,848.70 : x
  2. Step 2: Convert to fraction form
    1,821,706.30/2,732,559.45 = 874,848.70/x
  3. Step 3: Cross multiply
    1,821,706.30x = 2,732,559.45 × 874,848.70
  4. Step 4: Simplify right side
    1,821,706.30x = 2,390,576,082,505.22
  5. Step 5: Solve for x
    x = 2,390,576,082,505.22/1,821,706.30
  6. Step 6: Final answer
    x = 1,312,273.05

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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.