Home / 1,186,201.05-1,636,954.48-642,336.83

Finding the Fourth Proportional to 1,186,201.05, 1,636,954.48 and 642,336.83

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Solution

The fourth proportional to 1,186,201.05, 1,636,954.48 and 642,336.83 is: 886,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,201.05 : 1,636,954.48 = 642,336.83 : x
  2. Step 2: Convert to fraction form
    1,186,201.05/1,636,954.48 = 642,336.83/x
  3. Step 3: Cross multiply
    1,186,201.05x = 1,636,954.48 × 642,336.83
  4. Step 4: Simplify right side
    1,186,201.05x = 1,051,476,151,537.50
  5. Step 5: Solve for x
    x = 1,051,476,151,537.50/1,186,201.05
  6. Step 6: Final answer
    x = 886,423.22

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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.