Home / 619,620.49-929,419.39-170,339.55

Finding the Fourth Proportional to 619,620.49, 929,419.39 and 170,339.55

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Solution

The fourth proportional to 619,620.49, 929,419.39 and 170,339.55 is: 255,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,620.49 : 929,419.39 = 170,339.55 : x
  2. Step 2: Convert to fraction form
    619,620.49/929,419.39 = 170,339.55/x
  3. Step 3: Cross multiply
    619,620.49x = 929,419.39 × 170,339.55
  4. Step 4: Simplify right side
    619,620.49x = 158,316,880,653.87
  5. Step 5: Solve for x
    x = 158,316,880,653.87/619,620.49
  6. Step 6: Final answer
    x = 255,506.21

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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.