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Finding the Fourth Proportional to 466,431.52, 643,616.40 and 265,231.84

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Solution

The fourth proportional to 466,431.52, 643,616.40 and 265,231.84 is: 365,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,431.52 : 643,616.40 = 265,231.84 : x
  2. Step 2: Convert to fraction form
    466,431.52/643,616.40 = 265,231.84/x
  3. Step 3: Cross multiply
    466,431.52x = 643,616.40 × 265,231.84
  4. Step 4: Simplify right side
    466,431.52x = 170,707,562,026.18
  5. Step 5: Solve for x
    x = 170,707,562,026.18/466,431.52
  6. Step 6: Final answer
    x = 365,986.33

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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.