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Finding the Fourth Proportional to 492,050.40, 738,248.40 and 211,653.60

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Solution

The fourth proportional to 492,050.40, 738,248.40 and 211,653.60 is: 317,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,050.40 : 738,248.40 = 211,653.60 : x
  2. Step 2: Convert to fraction form
    492,050.40/738,248.40 = 211,653.60/x
  3. Step 3: Cross multiply
    492,050.40x = 738,248.40 × 211,653.60
  4. Step 4: Simplify right side
    492,050.40x = 156,252,931,554.24
  5. Step 5: Solve for x
    x = 156,252,931,554.24/492,050.40
  6. Step 6: Final answer
    x = 317,554.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.