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Finding the Fourth Proportional to 814,185, 1,123,580.75 and 451,615.03

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Solution

The fourth proportional to 814,185, 1,123,580.75 and 451,615.03 is: 623,231.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,185 : 1,123,580.75 = 451,615.03 : x
  2. Step 2: Convert to fraction form
    814,185/1,123,580.75 = 451,615.03/x
  3. Step 3: Cross multiply
    814,185x = 1,123,580.75 × 451,615.03
  4. Step 4: Simplify right side
    814,185x = 507,425,949,051.65
  5. Step 5: Solve for x
    x = 507,425,949,051.65/814,185
  6. Step 6: Final answer
    x = 623,231.76

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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.