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Finding the Fourth Proportional to 593,045.19, 818,401.14 and 321,113

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Solution

The fourth proportional to 593,045.19, 818,401.14 and 321,113 is: 443,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,045.19 : 818,401.14 = 321,113 : x
  2. Step 2: Convert to fraction form
    593,045.19/818,401.14 = 321,113/x
  3. Step 3: Cross multiply
    593,045.19x = 818,401.14 × 321,113
  4. Step 4: Simplify right side
    593,045.19x = 262,799,245,268.82
  5. Step 5: Solve for x
    x = 262,799,245,268.82/593,045.19
  6. Step 6: Final answer
    x = 443,135.28

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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.