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Finding the Fourth Proportional to 413,491.80, 620,237.70 and 176,858.40

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Solution

The fourth proportional to 413,491.80, 620,237.70 and 176,858.40 is: 265,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,491.80 : 620,237.70 = 176,858.40 : x
  2. Step 2: Convert to fraction form
    413,491.80/620,237.70 = 176,858.40/x
  3. Step 3: Cross multiply
    413,491.80x = 620,237.70 × 176,858.40
  4. Step 4: Simplify right side
    413,491.80x = 109,694,247,241.68
  5. Step 5: Solve for x
    x = 109,694,247,241.68/413,491.80
  6. Step 6: Final answer
    x = 265,287.60

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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.