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Finding the Fourth Proportional to 1,326,907.35, 1,986,984.16 and 876,953.97

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Solution

The fourth proportional to 1,326,907.35, 1,986,984.16 and 876,953.97 is: 1,313,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,907.35 : 1,986,984.16 = 876,953.97 : x
  2. Step 2: Convert to fraction form
    1,326,907.35/1,986,984.16 = 876,953.97/x
  3. Step 3: Cross multiply
    1,326,907.35x = 1,986,984.16 × 876,953.97
  4. Step 4: Simplify right side
    1,326,907.35x = 1,742,493,645,246.73
  5. Step 5: Solve for x
    x = 1,742,493,645,246.73/1,326,907.35
  6. Step 6: Final answer
    x = 1,313,199.18

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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.