Home / 1,292,152.54-1,783,187.40-711,443.20

Finding the Fourth Proportional to 1,292,152.54, 1,783,187.40 and 711,443.20

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Solution

The fourth proportional to 1,292,152.54, 1,783,187.40 and 711,443.20 is: 981,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,152.54 : 1,783,187.40 = 711,443.20 : x
  2. Step 2: Convert to fraction form
    1,292,152.54/1,783,187.40 = 711,443.20/x
  3. Step 3: Cross multiply
    1,292,152.54x = 1,783,187.40 × 711,443.20
  4. Step 4: Simplify right side
    1,292,152.54x = 1,268,636,550,055.68
  5. Step 5: Solve for x
    x = 1,268,636,550,055.68/1,292,152.54
  6. Step 6: Final answer
    x = 981,800.92

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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.