Home / 1,284,992.25-1,773,328.19-711,978.81

Finding the Fourth Proportional to 1,284,992.25, 1,773,328.19 and 711,978.81

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Solution

The fourth proportional to 1,284,992.25, 1,773,328.19 and 711,978.81 is: 982,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,992.25 : 1,773,328.19 = 711,978.81 : x
  2. Step 2: Convert to fraction form
    1,284,992.25/1,773,328.19 = 711,978.81/x
  3. Step 3: Cross multiply
    1,284,992.25x = 1,773,328.19 × 711,978.81
  4. Step 4: Simplify right side
    1,284,992.25x = 1,262,572,090,895.76
  5. Step 5: Solve for x
    x = 1,262,572,090,895.76/1,284,992.25
  6. Step 6: Final answer
    x = 982,552.30

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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.