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Finding the Fourth Proportional to 439,690.32, 659,435.85 and 223,329.74

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Solution

The fourth proportional to 439,690.32, 659,435.85 and 223,329.74 is: 334,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,690.32 : 659,435.85 = 223,329.74 : x
  2. Step 2: Convert to fraction form
    439,690.32/659,435.85 = 223,329.74/x
  3. Step 3: Cross multiply
    439,690.32x = 659,435.85 × 223,329.74
  4. Step 4: Simplify right side
    439,690.32x = 147,271,633,630.00
  5. Step 5: Solve for x
    x = 147,271,633,630.00/439,690.32
  6. Step 6: Final answer
    x = 334,944.00

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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.