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Finding the Fourth Proportional to 328,809.08, 453,707.88 and 199,680.40

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Solution

The fourth proportional to 328,809.08, 453,707.88 and 199,680.40 is: 275,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,809.08 : 453,707.88 = 199,680.40 : x
  2. Step 2: Convert to fraction form
    328,809.08/453,707.88 = 199,680.40/x
  3. Step 3: Cross multiply
    328,809.08x = 453,707.88 × 199,680.40
  4. Step 4: Simplify right side
    328,809.08x = 90,596,570,961.55
  5. Step 5: Solve for x
    x = 90,596,570,961.55/328,809.08
  6. Step 6: Final answer
    x = 275,529.41

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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.