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Finding the Fourth Proportional to 328,428.32, 453,230.98 and 177,525.32

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Solution

The fourth proportional to 328,428.32, 453,230.98 and 177,525.32 is: 244,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,428.32 : 453,230.98 = 177,525.32 : x
  2. Step 2: Convert to fraction form
    328,428.32/453,230.98 = 177,525.32/x
  3. Step 3: Cross multiply
    328,428.32x = 453,230.98 × 177,525.32
  4. Step 4: Simplify right side
    328,428.32x = 80,459,974,758.41
  5. Step 5: Solve for x
    x = 80,459,974,758.41/328,428.32
  6. Step 6: Final answer
    x = 244,984.89

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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.