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Finding the Fourth Proportional to 389,033.91, 583,550.87 and 300,416.67

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Solution

The fourth proportional to 389,033.91, 583,550.87 and 300,416.67 is: 450,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,033.91 : 583,550.87 = 300,416.67 : x
  2. Step 2: Convert to fraction form
    389,033.91/583,550.87 = 300,416.67/x
  3. Step 3: Cross multiply
    389,033.91x = 583,550.87 × 300,416.67
  4. Step 4: Simplify right side
    389,033.91x = 175,308,407,638.92
  5. Step 5: Solve for x
    x = 175,308,407,638.92/389,033.91
  6. Step 6: Final answer
    x = 450,625.01

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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.