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Finding the Fourth Proportional to 313,037.58, 468,216.30 and 290,347.44

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Solution

The fourth proportional to 313,037.58, 468,216.30 and 290,347.44 is: 434,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,037.58 : 468,216.30 = 290,347.44 : x
  2. Step 2: Convert to fraction form
    313,037.58/468,216.30 = 290,347.44/x
  3. Step 3: Cross multiply
    313,037.58x = 468,216.30 × 290,347.44
  4. Step 4: Simplify right side
    313,037.58x = 135,945,404,071.27
  5. Step 5: Solve for x
    x = 135,945,404,071.27/313,037.58
  6. Step 6: Final answer
    x = 434,278.22

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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.