Home / 1,186,687.44-1,637,636.54-642,823.24

Finding the Fourth Proportional to 1,186,687.44, 1,637,636.54 and 642,823.24

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Solution

The fourth proportional to 1,186,687.44, 1,637,636.54 and 642,823.24 is: 887,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,687.44 : 1,637,636.54 = 642,823.24 : x
  2. Step 2: Convert to fraction form
    1,186,687.44/1,637,636.54 = 642,823.24/x
  3. Step 3: Cross multiply
    1,186,687.44x = 1,637,636.54 × 642,823.24
  4. Step 4: Simplify right side
    1,186,687.44x = 1,052,710,822,347.55
  5. Step 5: Solve for x
    x = 1,052,710,822,347.55/1,186,687.44
  6. Step 6: Final answer
    x = 887,100.33

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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.