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Finding the Fourth Proportional to 482,238.36, 665,550.54 and 316,807.80

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Solution

The fourth proportional to 482,238.36, 665,550.54 and 316,807.80 is: 437,235.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,238.36 : 665,550.54 = 316,807.80 : x
  2. Step 2: Convert to fraction form
    482,238.36/665,550.54 = 316,807.80/x
  3. Step 3: Cross multiply
    482,238.36x = 665,550.54 × 316,807.80
  4. Step 4: Simplify right side
    482,238.36x = 210,851,602,366.21
  5. Step 5: Solve for x
    x = 210,851,602,366.21/482,238.36
  6. Step 6: Final answer
    x = 437,235.23

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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.