Home / 821,147.31-1,133,171.93-477,177.57

Finding the Fourth Proportional to 821,147.31, 1,133,171.93 and 477,177.57

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Solution

The fourth proportional to 821,147.31, 1,133,171.93 and 477,177.57 is: 658,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,147.31 : 1,133,171.93 = 477,177.57 : x
  2. Step 2: Convert to fraction form
    821,147.31/1,133,171.93 = 477,177.57/x
  3. Step 3: Cross multiply
    821,147.31x = 1,133,171.93 × 477,177.57
  4. Step 4: Simplify right side
    821,147.31x = 540,724,225,563.72
  5. Step 5: Solve for x
    x = 540,724,225,563.72/821,147.31
  6. Step 6: Final answer
    x = 658,498.44

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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.