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Finding the Fourth Proportional to 1,314,581, 1,814,121.78 and 710,969

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Solution

The fourth proportional to 1,314,581, 1,814,121.78 and 710,969 is: 981,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,581 : 1,814,121.78 = 710,969 : x
  2. Step 2: Convert to fraction form
    1,314,581/1,814,121.78 = 710,969/x
  3. Step 3: Cross multiply
    1,314,581x = 1,814,121.78 × 710,969
  4. Step 4: Simplify right side
    1,314,581x = 1,289,784,347,804.82
  5. Step 5: Solve for x
    x = 1,289,784,347,804.82/1,314,581
  6. Step 6: Final answer
    x = 981,137.22

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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.