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Finding the Fourth Proportional to 341,491.80, 512,237.70 and 144,474.20

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Solution

The fourth proportional to 341,491.80, 512,237.70 and 144,474.20 is: 216,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,491.80 : 512,237.70 = 144,474.20 : x
  2. Step 2: Convert to fraction form
    341,491.80/512,237.70 = 144,474.20/x
  3. Step 3: Cross multiply
    341,491.80x = 512,237.70 × 144,474.20
  4. Step 4: Simplify right side
    341,491.80x = 74,005,131,917.34
  5. Step 5: Solve for x
    x = 74,005,131,917.34/341,491.80
  6. Step 6: Final answer
    x = 216,711.30

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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.