Home / 1,186,055.21-1,636,749.32-642,179.77

Finding the Fourth Proportional to 1,186,055.21, 1,636,749.32 and 642,179.77

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Solution

The fourth proportional to 1,186,055.21, 1,636,749.32 and 642,179.77 is: 886,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,055.21 : 1,636,749.32 = 642,179.77 : x
  2. Step 2: Convert to fraction form
    1,186,055.21/1,636,749.32 = 642,179.77/x
  3. Step 3: Cross multiply
    1,186,055.21x = 1,636,749.32 × 642,179.77
  4. Step 4: Simplify right side
    1,186,055.21x = 1,051,087,294,562.48
  5. Step 5: Solve for x
    x = 1,051,087,294,562.48/1,186,055.21
  6. Step 6: Final answer
    x = 886,204.35

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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.