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Finding the Fourth Proportional to 328,903.24, 453,886.45 and 178,000.24

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Solution

The fourth proportional to 328,903.24, 453,886.45 and 178,000.24 is: 245,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,903.24 : 453,886.45 = 178,000.24 : x
  2. Step 2: Convert to fraction form
    328,903.24/453,886.45 = 178,000.24/x
  3. Step 3: Cross multiply
    328,903.24x = 453,886.45 × 178,000.24
  4. Step 4: Simplify right side
    328,903.24x = 80,791,897,032.75
  5. Step 5: Solve for x
    x = 80,791,897,032.75/328,903.24
  6. Step 6: Final answer
    x = 245,640.32

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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.