Home / 919,200.71-1,268,533.08-556,419.33

Finding the Fourth Proportional to 919,200.71, 1,268,533.08 and 556,419.33

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Solution

The fourth proportional to 919,200.71, 1,268,533.08 and 556,419.33 is: 767,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,200.71 : 1,268,533.08 = 556,419.33 : x
  2. Step 2: Convert to fraction form
    919,200.71/1,268,533.08 = 556,419.33/x
  3. Step 3: Cross multiply
    919,200.71x = 1,268,533.08 × 556,419.33
  4. Step 4: Simplify right side
    919,200.71x = 705,836,326,456.44
  5. Step 5: Solve for x
    x = 705,836,326,456.44/919,200.71
  6. Step 6: Final answer
    x = 767,880.53

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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.