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Finding the Fourth Proportional to 298,963.32, 412,336.08 and 191,543.40

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Solution

The fourth proportional to 298,963.32, 412,336.08 and 191,543.40 is: 264,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,963.32 : 412,336.08 = 191,543.40 : x
  2. Step 2: Convert to fraction form
    298,963.32/412,336.08 = 191,543.40/x
  3. Step 3: Cross multiply
    298,963.32x = 412,336.08 × 191,543.40
  4. Step 4: Simplify right side
    298,963.32x = 78,980,254,705.87
  5. Step 5: Solve for x
    x = 78,980,254,705.87/298,963.32
  6. Step 6: Final answer
    x = 264,180.42

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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.