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Finding the Fourth Proportional to 504,427.38, 696,114.48 and 278,080.98

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Solution

The fourth proportional to 504,427.38, 696,114.48 and 278,080.98 is: 383,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,427.38 : 696,114.48 = 278,080.98 : x
  2. Step 2: Convert to fraction form
    504,427.38/696,114.48 = 278,080.98/x
  3. Step 3: Cross multiply
    504,427.38x = 696,114.48 × 278,080.98
  4. Step 4: Simplify right side
    504,427.38x = 193,576,196,790.59
  5. Step 5: Solve for x
    x = 193,576,196,790.59/504,427.38
  6. Step 6: Final answer
    x = 383,754.34

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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.