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Finding the Fourth Proportional to 328,813.08, 453,713.40 and 199,684.40

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Solution

The fourth proportional to 328,813.08, 453,713.40 and 199,684.40 is: 275,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,813.08 : 453,713.40 = 199,684.40 : x
  2. Step 2: Convert to fraction form
    328,813.08/453,713.40 = 199,684.40/x
  3. Step 3: Cross multiply
    328,813.08x = 453,713.40 × 199,684.40
  4. Step 4: Simplify right side
    328,813.08x = 90,599,488,050.96
  5. Step 5: Solve for x
    x = 90,599,488,050.96/328,813.08
  6. Step 6: Final answer
    x = 275,534.93

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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.