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Finding the Fourth Proportional to 590,048.40, 885,072.60 and 309,529.20

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Solution

The fourth proportional to 590,048.40, 885,072.60 and 309,529.20 is: 464,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,048.40 : 885,072.60 = 309,529.20 : x
  2. Step 2: Convert to fraction form
    590,048.40/885,072.60 = 309,529.20/x
  3. Step 3: Cross multiply
    590,048.40x = 885,072.60 × 309,529.20
  4. Step 4: Simplify right side
    590,048.40x = 273,955,813,819.92
  5. Step 5: Solve for x
    x = 273,955,813,819.92/590,048.40
  6. Step 6: Final answer
    x = 464,293.80

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Similar ratio
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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.