Home / 1,186,485.09-1,637,341.19-642,608.49

Finding the Fourth Proportional to 1,186,485.09, 1,637,341.19 and 642,608.49

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Solution

The fourth proportional to 1,186,485.09, 1,637,341.19 and 642,608.49 is: 886,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,485.09 : 1,637,341.19 = 642,608.49 : x
  2. Step 2: Convert to fraction form
    1,186,485.09/1,637,341.19 = 642,608.49/x
  3. Step 3: Cross multiply
    1,186,485.09x = 1,637,341.19 × 642,608.49
  4. Step 4: Simplify right side
    1,186,485.09x = 1,052,169,346,507.66
  5. Step 5: Solve for x
    x = 1,052,169,346,507.66/1,186,485.09
  6. Step 6: Final answer
    x = 886,795.25

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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.