Home / 1,292,076.40-1,783,047.66-719,116.48

Finding the Fourth Proportional to 1,292,076.40, 1,783,047.66 and 719,116.48

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Solution

The fourth proportional to 1,292,076.40, 1,783,047.66 and 719,116.48 is: 992,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,076.40 : 1,783,047.66 = 719,116.48 : x
  2. Step 2: Convert to fraction form
    1,292,076.40/1,783,047.66 = 719,116.48/x
  3. Step 3: Cross multiply
    1,292,076.40x = 1,783,047.66 × 719,116.48
  4. Step 4: Simplify right side
    1,292,076.40x = 1,282,218,956,931.44
  5. Step 5: Solve for x
    x = 1,282,218,956,931.44/1,292,076.40
  6. Step 6: Final answer
    x = 992,370.85

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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.