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Finding the Fourth Proportional to 1,405,532.22, 1,939,635.27 and 760,952.58

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Solution

The fourth proportional to 1,405,532.22, 1,939,635.27 and 760,952.58 is: 1,050,115.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,532.22 : 1,939,635.27 = 760,952.58 : x
  2. Step 2: Convert to fraction form
    1,405,532.22/1,939,635.27 = 760,952.58/x
  3. Step 3: Cross multiply
    1,405,532.22x = 1,939,635.27 × 760,952.58
  4. Step 4: Simplify right side
    1,405,532.22x = 1,475,970,462,965.50
  5. Step 5: Solve for x
    x = 1,475,970,462,965.50/1,405,532.22
  6. Step 6: Final answer
    x = 1,050,115.00

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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.