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Finding the Fourth Proportional to 965,703.20, 1,449,073.20 and 404,794.40

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Solution

The fourth proportional to 965,703.20, 1,449,073.20 and 404,794.40 is: 607,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,703.20 : 1,449,073.20 = 404,794.40 : x
  2. Step 2: Convert to fraction form
    965,703.20/1,449,073.20 = 404,794.40/x
  3. Step 3: Cross multiply
    965,703.20x = 1,449,073.20 × 404,794.40
  4. Step 4: Simplify right side
    965,703.20x = 586,576,716,550.08
  5. Step 5: Solve for x
    x = 586,576,716,550.08/965,703.20
  6. Step 6: Final answer
    x = 607,408.90

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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.