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Finding the Fourth Proportional to 1,270,634.64, 1,753,533 and 761,326.08

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Solution

The fourth proportional to 1,270,634.64, 1,753,533 and 761,326.08 is: 1,050,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,634.64 : 1,753,533 = 761,326.08 : x
  2. Step 2: Convert to fraction form
    1,270,634.64/1,753,533 = 761,326.08/x
  3. Step 3: Cross multiply
    1,270,634.64x = 1,753,533 × 761,326.08
  4. Step 4: Simplify right side
    1,270,634.64x = 1,335,010,405,040.64
  5. Step 5: Solve for x
    x = 1,335,010,405,040.64/1,270,634.64
  6. Step 6: Final answer
    x = 1,050,664.26

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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.