Home / 728,811.20-1,093,216.80-256,030.40

Finding the Fourth Proportional to 728,811.20, 1,093,216.80 and 256,030.40

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Solution

The fourth proportional to 728,811.20, 1,093,216.80 and 256,030.40 is: 384,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,811.20 : 1,093,216.80 = 256,030.40 : x
  2. Step 2: Convert to fraction form
    728,811.20/1,093,216.80 = 256,030.40/x
  3. Step 3: Cross multiply
    728,811.20x = 1,093,216.80 × 256,030.40
  4. Step 4: Simplify right side
    728,811.20x = 279,896,734,590.72
  5. Step 5: Solve for x
    x = 279,896,734,590.72/728,811.20
  6. Step 6: Final answer
    x = 384,045.60

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Similar ratio
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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.