Home / 278,161.10-417,293.60-126,368.84

Finding the Fourth Proportional to 278,161.10, 417,293.60 and 126,368.84

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Solution

The fourth proportional to 278,161.10, 417,293.60 and 126,368.84 is: 189,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,161.10 : 417,293.60 = 126,368.84 : x
  2. Step 2: Convert to fraction form
    278,161.10/417,293.60 = 126,368.84/x
  3. Step 3: Cross multiply
    278,161.10x = 417,293.60 × 126,368.84
  4. Step 4: Simplify right side
    278,161.10x = 52,732,907,855.50
  5. Step 5: Solve for x
    x = 52,732,907,855.50/278,161.10
  6. Step 6: Final answer
    x = 189,576.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.