Home / 1,186,514.32-1,637,379.84-642,637.48

Finding the Fourth Proportional to 1,186,514.32, 1,637,379.84 and 642,637.48

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Solution

The fourth proportional to 1,186,514.32, 1,637,379.84 and 642,637.48 is: 886,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,514.32 : 1,637,379.84 = 642,637.48 : x
  2. Step 2: Convert to fraction form
    1,186,514.32/1,637,379.84 = 642,637.48/x
  3. Step 3: Cross multiply
    1,186,514.32x = 1,637,379.84 × 642,637.48
  4. Step 4: Simplify right side
    1,186,514.32x = 1,052,241,654,180.40
  5. Step 5: Solve for x
    x = 1,052,241,654,180.40/1,186,514.32
  6. Step 6: Final answer
    x = 886,834.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.