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Finding the Fourth Proportional to 468,381.12, 646,467.12 and 296,189.16

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Solution

The fourth proportional to 468,381.12, 646,467.12 and 296,189.16 is: 408,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,381.12 : 646,467.12 = 296,189.16 : x
  2. Step 2: Convert to fraction form
    468,381.12/646,467.12 = 296,189.16/x
  3. Step 3: Cross multiply
    468,381.12x = 646,467.12 × 296,189.16
  4. Step 4: Simplify right side
    468,381.12x = 191,476,553,240.42
  5. Step 5: Solve for x
    x = 191,476,553,240.42/468,381.12
  6. Step 6: Final answer
    x = 408,805.02

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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.