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Finding the Fourth Proportional to 320,355.78, 441,963.82 and 184,316.52

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Solution

The fourth proportional to 320,355.78, 441,963.82 and 184,316.52 is: 254,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,355.78 : 441,963.82 = 184,316.52 : x
  2. Step 2: Convert to fraction form
    320,355.78/441,963.82 = 184,316.52/x
  3. Step 3: Cross multiply
    320,355.78x = 441,963.82 × 184,316.52
  4. Step 4: Simplify right side
    320,355.78x = 81,461,233,268.31
  5. Step 5: Solve for x
    x = 81,461,233,268.31/320,355.78
  6. Step 6: Final answer
    x = 254,283.64

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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.