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Finding the Fourth Proportional to 520,236.53, 780,417.33 and 183,207.53

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Solution

The fourth proportional to 520,236.53, 780,417.33 and 183,207.53 is: 274,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,236.53 : 780,417.33 = 183,207.53 : x
  2. Step 2: Convert to fraction form
    520,236.53/780,417.33 = 183,207.53/x
  3. Step 3: Cross multiply
    520,236.53x = 780,417.33 × 183,207.53
  4. Step 4: Simplify right side
    520,236.53x = 142,978,333,349.54
  5. Step 5: Solve for x
    x = 142,978,333,349.54/520,236.53
  6. Step 6: Final answer
    x = 274,833.32

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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.