Home / 1,185,869.16-1,636,487.73-641,990.58

Finding the Fourth Proportional to 1,185,869.16, 1,636,487.73 and 641,990.58

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Solution

The fourth proportional to 1,185,869.16, 1,636,487.73 and 641,990.58 is: 885,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,869.16 : 1,636,487.73 = 641,990.58 : x
  2. Step 2: Convert to fraction form
    1,185,869.16/1,636,487.73 = 641,990.58/x
  3. Step 3: Cross multiply
    1,185,869.16x = 1,636,487.73 × 641,990.58
  4. Step 4: Simplify right side
    1,185,869.16x = 1,050,609,706,945.58
  5. Step 5: Solve for x
    x = 1,050,609,706,945.58/1,185,869.16
  6. Step 6: Final answer
    x = 885,940.66

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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.