Home / 801,555.05-1,106,895.30-515,571.59

Finding the Fourth Proportional to 801,555.05, 1,106,895.30 and 515,571.59

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Solution

The fourth proportional to 801,555.05, 1,106,895.30 and 515,571.59 is: 711,970.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,555.05 : 1,106,895.30 = 515,571.59 : x
  2. Step 2: Convert to fraction form
    801,555.05/1,106,895.30 = 515,571.59/x
  3. Step 3: Cross multiply
    801,555.05x = 1,106,895.30 × 515,571.59
  4. Step 4: Simplify right side
    801,555.05x = 570,683,769,784.53
  5. Step 5: Solve for x
    x = 570,683,769,784.53/801,555.05
  6. Step 6: Final answer
    x = 711,970.77

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Double scale
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1.5x scale

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.