Home / 1,186,180.56-1,636,937.07-642,316.35

Finding the Fourth Proportional to 1,186,180.56, 1,636,937.07 and 642,316.35

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Solution

The fourth proportional to 1,186,180.56, 1,636,937.07 and 642,316.35 is: 886,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,180.56 : 1,636,937.07 = 642,316.35 : x
  2. Step 2: Convert to fraction form
    1,186,180.56/1,636,937.07 = 642,316.35/x
  3. Step 3: Cross multiply
    1,186,180.56x = 1,636,937.07 × 642,316.35
  4. Step 4: Simplify right side
    1,186,180.56x = 1,051,431,443,982.09
  5. Step 5: Solve for x
    x = 1,051,431,443,982.09/1,186,180.56
  6. Step 6: Final answer
    x = 886,400.84

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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.