Home / 829,140.48-1,142,836.48-587,112.96

Finding the Fourth Proportional to 829,140.48, 1,142,836.48 and 587,112.96

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Solution

The fourth proportional to 829,140.48, 1,142,836.48 and 587,112.96 is: 809,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,140.48 : 1,142,836.48 = 587,112.96 : x
  2. Step 2: Convert to fraction form
    829,140.48/1,142,836.48 = 587,112.96/x
  3. Step 3: Cross multiply
    829,140.48x = 1,142,836.48 × 587,112.96
  4. Step 4: Simplify right side
    829,140.48x = 670,974,108,568.78
  5. Step 5: Solve for x
    x = 670,974,108,568.78/829,140.48
  6. Step 6: Final answer
    x = 809,240.56

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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.