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Finding the Fourth Proportional to 525,767.98, 725,574.36 and 321,814.84

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Solution

The fourth proportional to 525,767.98, 725,574.36 and 321,814.84 is: 444,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,767.98 : 725,574.36 = 321,814.84 : x
  2. Step 2: Convert to fraction form
    525,767.98/725,574.36 = 321,814.84/x
  3. Step 3: Cross multiply
    525,767.98x = 725,574.36 × 321,814.84
  4. Step 4: Simplify right side
    525,767.98x = 233,500,596,571.50
  5. Step 5: Solve for x
    x = 233,500,596,571.50/525,767.98
  6. Step 6: Final answer
    x = 444,113.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.