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Finding the Fourth Proportional to 328,935.90, 453,931.50 and 178,032.90

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Solution

The fourth proportional to 328,935.90, 453,931.50 and 178,032.90 is: 245,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,935.90 : 453,931.50 = 178,032.90 : x
  2. Step 2: Convert to fraction form
    328,935.90/453,931.50 = 178,032.90/x
  3. Step 3: Cross multiply
    328,935.90x = 453,931.50 × 178,032.90
  4. Step 4: Simplify right side
    328,935.90x = 80,814,741,346.35
  5. Step 5: Solve for x
    x = 80,814,741,346.35/328,935.90
  6. Step 6: Final answer
    x = 245,685.38

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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.