Home / 1,186,518.96-1,637,383.14-642,641.22

Finding the Fourth Proportional to 1,186,518.96, 1,637,383.14 and 642,641.22

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Solution

The fourth proportional to 1,186,518.96, 1,637,383.14 and 642,641.22 is: 886,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,518.96 : 1,637,383.14 = 642,641.22 : x
  2. Step 2: Convert to fraction form
    1,186,518.96/1,637,383.14 = 642,641.22/x
  3. Step 3: Cross multiply
    1,186,518.96x = 1,637,383.14 × 642,641.22
  4. Step 4: Simplify right side
    1,186,518.96x = 1,052,249,898,697.03
  5. Step 5: Solve for x
    x = 1,052,249,898,697.03/1,186,518.96
  6. Step 6: Final answer
    x = 886,837.83

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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.