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Finding the Fourth Proportional to 405,797.40, 607,529.70 and 248,333.40

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Solution

The fourth proportional to 405,797.40, 607,529.70 and 248,333.40 is: 371,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,797.40 : 607,529.70 = 248,333.40 : x
  2. Step 2: Convert to fraction form
    405,797.40/607,529.70 = 248,333.40/x
  3. Step 3: Cross multiply
    405,797.40x = 607,529.70 × 248,333.40
  4. Step 4: Simplify right side
    405,797.40x = 150,869,916,001.98
  5. Step 5: Solve for x
    x = 150,869,916,001.98/405,797.40
  6. Step 6: Final answer
    x = 371,786.31

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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.