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Finding the Fourth Proportional to 447,887.64, 618,085.44 and 243,938.88

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Solution

The fourth proportional to 447,887.64, 618,085.44 and 243,938.88 is: 336,635.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,887.64 : 618,085.44 = 243,938.88 : x
  2. Step 2: Convert to fraction form
    447,887.64/618,085.44 = 243,938.88/x
  3. Step 3: Cross multiply
    447,887.64x = 618,085.44 × 243,938.88
  4. Step 4: Simplify right side
    447,887.64x = 150,775,069,977.91
  5. Step 5: Solve for x
    x = 150,775,069,977.91/447,887.64
  6. Step 6: Final answer
    x = 336,635.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.