Home / 1,186,518.82-1,637,392.02-642,653.26

Finding the Fourth Proportional to 1,186,518.82, 1,637,392.02 and 642,653.26

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Solution

The fourth proportional to 1,186,518.82, 1,637,392.02 and 642,653.26 is: 886,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,518.82 : 1,637,392.02 = 642,653.26 : x
  2. Step 2: Convert to fraction form
    1,186,518.82/1,637,392.02 = 642,653.26/x
  3. Step 3: Cross multiply
    1,186,518.82x = 1,637,392.02 × 642,653.26
  4. Step 4: Simplify right side
    1,186,518.82x = 1,052,275,319,550.99
  5. Step 5: Solve for x
    x = 1,052,275,319,550.99/1,186,518.82
  6. Step 6: Final answer
    x = 886,859.36

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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.