Home / 1,185,860.64-1,636,485.64-641,996.24

Finding the Fourth Proportional to 1,185,860.64, 1,636,485.64 and 641,996.24

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Solution

The fourth proportional to 1,185,860.64, 1,636,485.64 and 641,996.24 is: 885,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,860.64 : 1,636,485.64 = 641,996.24 : x
  2. Step 2: Convert to fraction form
    1,185,860.64/1,636,485.64 = 641,996.24/x
  3. Step 3: Cross multiply
    1,185,860.64x = 1,636,485.64 × 641,996.24
  4. Step 4: Simplify right side
    1,185,860.64x = 1,050,617,627,693.99
  5. Step 5: Solve for x
    x = 1,050,617,627,693.99/1,185,860.64
  6. Step 6: Final answer
    x = 885,953.71

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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.