Home / 612,811.26-919,216.98-163,533.78

Finding the Fourth Proportional to 612,811.26, 919,216.98 and 163,533.78

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Solution

The fourth proportional to 612,811.26, 919,216.98 and 163,533.78 is: 245,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,811.26 : 919,216.98 = 163,533.78 : x
  2. Step 2: Convert to fraction form
    612,811.26/919,216.98 = 163,533.78/x
  3. Step 3: Cross multiply
    612,811.26x = 919,216.98 × 163,533.78
  4. Step 4: Simplify right side
    612,811.26x = 150,323,027,379.58
  5. Step 5: Solve for x
    x = 150,323,027,379.58/612,811.26
  6. Step 6: Final answer
    x = 245,300.69

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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.