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Finding the Fourth Proportional to 298,880.16, 412,479.30 and 171,580.32

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Solution

The fourth proportional to 298,880.16, 412,479.30 and 171,580.32 is: 236,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,880.16 : 412,479.30 = 171,580.32 : x
  2. Step 2: Convert to fraction form
    298,880.16/412,479.30 = 171,580.32/x
  3. Step 3: Cross multiply
    298,880.16x = 412,479.30 × 171,580.32
  4. Step 4: Simplify right side
    298,880.16x = 70,773,330,287.38
  5. Step 5: Solve for x
    x = 70,773,330,287.38/298,880.16
  6. Step 6: Final answer
    x = 236,795.01

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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.