Home / 1,239,853.70-1,711,054.94-688,571.92

Finding the Fourth Proportional to 1,239,853.70, 1,711,054.94 and 688,571.92

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Solution

The fourth proportional to 1,239,853.70, 1,711,054.94 and 688,571.92 is: 950,260.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,853.70 : 1,711,054.94 = 688,571.92 : x
  2. Step 2: Convert to fraction form
    1,239,853.70/1,711,054.94 = 688,571.92/x
  3. Step 3: Cross multiply
    1,239,853.70x = 1,711,054.94 × 688,571.92
  4. Step 4: Simplify right side
    1,239,853.70x = 1,178,184,385,261.28
  5. Step 5: Solve for x
    x = 1,178,184,385,261.28/1,239,853.70
  6. Step 6: Final answer
    x = 950,260.81

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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.