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Finding the Fourth Proportional to 284,965.20, 426,884.60 and 249,944.40

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Solution

The fourth proportional to 284,965.20, 426,884.60 and 249,944.40 is: 374,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,965.20 : 426,884.60 = 249,944.40 : x
  2. Step 2: Convert to fraction form
    284,965.20/426,884.60 = 249,944.40/x
  3. Step 3: Cross multiply
    284,965.20x = 426,884.60 × 249,944.40
  4. Step 4: Simplify right side
    284,965.20x = 106,697,415,216.24
  5. Step 5: Solve for x
    x = 106,697,415,216.24/284,965.20
  6. Step 6: Final answer
    x = 374,422.61

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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.