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Finding the Fourth Proportional to 421,996.77, 582,333.71 and 230,973.93

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Solution

The fourth proportional to 421,996.77, 582,333.71 and 230,973.93 is: 318,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,996.77 : 582,333.71 = 230,973.93 : x
  2. Step 2: Convert to fraction form
    421,996.77/582,333.71 = 230,973.93/x
  3. Step 3: Cross multiply
    421,996.77x = 582,333.71 × 230,973.93
  4. Step 4: Simplify right side
    421,996.77x = 134,503,904,415.31
  5. Step 5: Solve for x
    x = 134,503,904,415.31/421,996.77
  6. Step 6: Final answer
    x = 318,732.07

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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.