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Finding the Fourth Proportional to 328,812.08, 453,712.02 and 199,683.40

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Solution

The fourth proportional to 328,812.08, 453,712.02 and 199,683.40 is: 275,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,812.08 : 453,712.02 = 199,683.40 : x
  2. Step 2: Convert to fraction form
    328,812.08/453,712.02 = 199,683.40/x
  3. Step 3: Cross multiply
    328,812.08x = 453,712.02 × 199,683.40
  4. Step 4: Simplify right side
    328,812.08x = 90,598,758,774.47
  5. Step 5: Solve for x
    x = 90,598,758,774.47/328,812.08
  6. Step 6: Final answer
    x = 275,533.55

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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.