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Finding the Fourth Proportional to 395,711.37, 546,108.48 and 223,569.63

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Solution

The fourth proportional to 395,711.37, 546,108.48 and 223,569.63 is: 308,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,711.37 : 546,108.48 = 223,569.63 : x
  2. Step 2: Convert to fraction form
    395,711.37/546,108.48 = 223,569.63/x
  3. Step 3: Cross multiply
    395,711.37x = 546,108.48 × 223,569.63
  4. Step 4: Simplify right side
    395,711.37x = 122,093,270,813.46
  5. Step 5: Solve for x
    x = 122,093,270,813.46/395,711.37
  6. Step 6: Final answer
    x = 308,541.22

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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.