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Finding the Fourth Proportional to 405,727.44, 559,715.22 and 262,533.72

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Solution

The fourth proportional to 405,727.44, 559,715.22 and 262,533.72 is: 362,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,727.44 : 559,715.22 = 262,533.72 : x
  2. Step 2: Convert to fraction form
    405,727.44/559,715.22 = 262,533.72/x
  3. Step 3: Cross multiply
    405,727.44x = 559,715.22 × 262,533.72
  4. Step 4: Simplify right side
    405,727.44x = 146,944,118,847.22
  5. Step 5: Solve for x
    x = 146,944,118,847.22/405,727.44
  6. Step 6: Final answer
    x = 362,174.47

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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.