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Finding the Fourth Proportional to 291,713.40, 437,570.10 and 273,998.70

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Solution

The fourth proportional to 291,713.40, 437,570.10 and 273,998.70 is: 410,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,713.40 : 437,570.10 = 273,998.70 : x
  2. Step 2: Convert to fraction form
    291,713.40/437,570.10 = 273,998.70/x
  3. Step 3: Cross multiply
    291,713.40x = 437,570.10 × 273,998.70
  4. Step 4: Simplify right side
    291,713.40x = 119,893,638,558.87
  5. Step 5: Solve for x
    x = 119,893,638,558.87/291,713.40
  6. Step 6: Final answer
    x = 410,998.05

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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.