Home / 1,185,654.53-1,636,203.56-641,788.65

Finding the Fourth Proportional to 1,185,654.53, 1,636,203.56 and 641,788.65

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Solution

The fourth proportional to 1,185,654.53, 1,636,203.56 and 641,788.65 is: 885,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,654.53 : 1,636,203.56 = 641,788.65 : x
  2. Step 2: Convert to fraction form
    1,185,654.53/1,636,203.56 = 641,788.65/x
  3. Step 3: Cross multiply
    1,185,654.53x = 1,636,203.56 × 641,788.65
  4. Step 4: Simplify right side
    1,185,654.53x = 1,050,096,870,688.65
  5. Step 5: Solve for x
    x = 1,050,096,870,688.65/1,185,654.53
  6. Step 6: Final answer
    x = 885,668.50

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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.