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Finding the Fourth Proportional to 397,951.25, 549,182.57 and 216,672.98

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Solution

The fourth proportional to 397,951.25, 549,182.57 and 216,672.98 is: 299,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,951.25 : 549,182.57 = 216,672.98 : x
  2. Step 2: Convert to fraction form
    397,951.25/549,182.57 = 216,672.98/x
  3. Step 3: Cross multiply
    397,951.25x = 549,182.57 × 216,672.98
  4. Step 4: Simplify right side
    397,951.25x = 118,993,020,176.68
  5. Step 5: Solve for x
    x = 118,993,020,176.68/397,951.25
  6. Step 6: Final answer
    x = 299,014.07

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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.