Home / 1,185,932.36-1,636,587.70-642,068.58

Finding the Fourth Proportional to 1,185,932.36, 1,636,587.70 and 642,068.58

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Solution

The fourth proportional to 1,185,932.36, 1,636,587.70 and 642,068.58 is: 886,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,932.36 : 1,636,587.70 = 642,068.58 : x
  2. Step 2: Convert to fraction form
    1,185,932.36/1,636,587.70 = 642,068.58/x
  3. Step 3: Cross multiply
    1,185,932.36x = 1,636,587.70 × 642,068.58
  4. Step 4: Simplify right side
    1,185,932.36x = 1,050,801,540,584.47
  5. Step 5: Solve for x
    x = 1,050,801,540,584.47/1,185,932.36
  6. Step 6: Final answer
    x = 886,055.21

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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.