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Finding the Fourth Proportional to 341,615.70, 512,423.55 and 119,999.70

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Solution

The fourth proportional to 341,615.70, 512,423.55 and 119,999.70 is: 179,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,615.70 : 512,423.55 = 119,999.70 : x
  2. Step 2: Convert to fraction form
    341,615.70/512,423.55 = 119,999.70/x
  3. Step 3: Cross multiply
    341,615.70x = 512,423.55 × 119,999.70
  4. Step 4: Simplify right side
    341,615.70x = 61,490,672,272.94
  5. Step 5: Solve for x
    x = 61,490,672,272.94/341,615.70
  6. Step 6: Final answer
    x = 179,999.55

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1.5x scale

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.