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Finding the Fourth Proportional to 593,394.18, 818,880.72 and 321,467.40

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Solution

The fourth proportional to 593,394.18, 818,880.72 and 321,467.40 is: 443,623.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,394.18 : 818,880.72 = 321,467.40 : x
  2. Step 2: Convert to fraction form
    593,394.18/818,880.72 = 321,467.40/x
  3. Step 3: Cross multiply
    593,394.18x = 818,880.72 × 321,467.40
  4. Step 4: Simplify right side
    593,394.18x = 263,243,455,968.53
  5. Step 5: Solve for x
    x = 263,243,455,968.53/593,394.18
  6. Step 6: Final answer
    x = 443,623.25

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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.