Home / 1,186,412.52-1,637,241.06-642,535.92

Finding the Fourth Proportional to 1,186,412.52, 1,637,241.06 and 642,535.92

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Solution

The fourth proportional to 1,186,412.52, 1,637,241.06 and 642,535.92 is: 886,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,412.52 : 1,637,241.06 = 642,535.92 : x
  2. Step 2: Convert to fraction form
    1,186,412.52/1,637,241.06 = 642,535.92/x
  3. Step 3: Cross multiply
    1,186,412.52x = 1,637,241.06 × 642,535.92
  4. Step 4: Simplify right side
    1,186,412.52x = 1,051,986,190,748.88
  5. Step 5: Solve for x
    x = 1,051,986,190,748.88/1,186,412.52
  6. Step 6: Final answer
    x = 886,695.12

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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.