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Finding the Fourth Proportional to 593,223.16, 818,643.78 and 321,284.80

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Solution

The fourth proportional to 593,223.16, 818,643.78 and 321,284.80 is: 443,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,223.16 : 818,643.78 = 321,284.80 : x
  2. Step 2: Convert to fraction form
    593,223.16/818,643.78 = 321,284.80/x
  3. Step 3: Cross multiply
    593,223.16x = 818,643.78 × 321,284.80
  4. Step 4: Simplify right side
    593,223.16x = 263,017,803,128.54
  5. Step 5: Solve for x
    x = 263,017,803,128.54/593,223.16
  6. Step 6: Final answer
    x = 443,370.76

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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.