Home / 1,292,153.54-1,783,188.78-711,444.20

Finding the Fourth Proportional to 1,292,153.54, 1,783,188.78 and 711,444.20

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Solution

The fourth proportional to 1,292,153.54, 1,783,188.78 and 711,444.20 is: 981,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,153.54 : 1,783,188.78 = 711,444.20 : x
  2. Step 2: Convert to fraction form
    1,292,153.54/1,783,188.78 = 711,444.20/x
  3. Step 3: Cross multiply
    1,292,153.54x = 1,783,188.78 × 711,444.20
  4. Step 4: Simplify right side
    1,292,153.54x = 1,268,639,315,036.08
  5. Step 5: Solve for x
    x = 1,268,639,315,036.08/1,292,153.54
  6. Step 6: Final answer
    x = 981,802.30

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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.