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Finding the Fourth Proportional to 593,261, 818,693.64 and 321,322.12

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Solution

The fourth proportional to 593,261, 818,693.64 and 321,322.12 is: 443,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,261 : 818,693.64 = 321,322.12 : x
  2. Step 2: Convert to fraction form
    593,261/818,693.64 = 321,322.12/x
  3. Step 3: Cross multiply
    593,261x = 818,693.64 × 321,322.12
  4. Step 4: Simplify right side
    593,261x = 263,064,376,035.32
  5. Step 5: Solve for x
    x = 263,064,376,035.32/593,261
  6. Step 6: Final answer
    x = 443,420.98

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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.