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Finding the Fourth Proportional to 326,483.84, 450,431.92 and 213,372.16

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Solution

The fourth proportional to 326,483.84, 450,431.92 and 213,372.16 is: 294,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,483.84 : 450,431.92 = 213,372.16 : x
  2. Step 2: Convert to fraction form
    326,483.84/450,431.92 = 213,372.16/x
  3. Step 3: Cross multiply
    326,483.84x = 450,431.92 × 213,372.16
  4. Step 4: Simplify right side
    326,483.84x = 96,109,631,703.35
  5. Step 5: Solve for x
    x = 96,109,631,703.35/326,483.84
  6. Step 6: Final answer
    x = 294,377.91

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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.