Home / 1,292,141.73-1,783,172.57-711,432.45

Finding the Fourth Proportional to 1,292,141.73, 1,783,172.57 and 711,432.45

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Solution

The fourth proportional to 1,292,141.73, 1,783,172.57 and 711,432.45 is: 981,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,141.73 : 1,783,172.57 = 711,432.45 : x
  2. Step 2: Convert to fraction form
    1,292,141.73/1,783,172.57 = 711,432.45/x
  3. Step 3: Cross multiply
    1,292,141.73x = 1,783,172.57 × 711,432.45
  4. Step 4: Simplify right side
    1,292,141.73x = 1,268,606,826,690.73
  5. Step 5: Solve for x
    x = 1,268,606,826,690.73/1,292,141.73
  6. Step 6: Final answer
    x = 981,786.13

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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.