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Finding the Fourth Proportional to 407,456.84, 562,326.02 and 237,745.64

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Solution

The fourth proportional to 407,456.84, 562,326.02 and 237,745.64 is: 328,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,456.84 : 562,326.02 = 237,745.64 : x
  2. Step 2: Convert to fraction form
    407,456.84/562,326.02 = 237,745.64/x
  3. Step 3: Cross multiply
    407,456.84x = 562,326.02 × 237,745.64
  4. Step 4: Simplify right side
    407,456.84x = 133,690,555,513.20
  5. Step 5: Solve for x
    x = 133,690,555,513.20/407,456.84
  6. Step 6: Final answer
    x = 328,109.74

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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.