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Finding the Fourth Proportional to 341,606.40, 512,409.60 and 316,723.20

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Solution

The fourth proportional to 341,606.40, 512,409.60 and 316,723.20 is: 475,084.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,606.40 : 512,409.60 = 316,723.20 : x
  2. Step 2: Convert to fraction form
    341,606.40/512,409.60 = 316,723.20/x
  3. Step 3: Cross multiply
    341,606.40x = 512,409.60 × 316,723.20
  4. Step 4: Simplify right side
    341,606.40x = 162,292,008,222.72
  5. Step 5: Solve for x
    x = 162,292,008,222.72/341,606.40
  6. Step 6: Final answer
    x = 475,084.80

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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.