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Finding the Fourth Proportional to 586,586.40, 879,879.60 and 306,067.20

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Solution

The fourth proportional to 586,586.40, 879,879.60 and 306,067.20 is: 459,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,586.40 : 879,879.60 = 306,067.20 : x
  2. Step 2: Convert to fraction form
    586,586.40/879,879.60 = 306,067.20/x
  3. Step 3: Cross multiply
    586,586.40x = 879,879.60 × 306,067.20
  4. Step 4: Simplify right side
    586,586.40x = 269,302,285,509.12
  5. Step 5: Solve for x
    x = 269,302,285,509.12/586,586.40
  6. Step 6: Final answer
    x = 459,100.80

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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.