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Finding the Fourth Proportional to 593,515, 819,051.66 and 321,582.84

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Solution

The fourth proportional to 593,515, 819,051.66 and 321,582.84 is: 443,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,515 : 819,051.66 = 321,582.84 : x
  2. Step 2: Convert to fraction form
    593,515/819,051.66 = 321,582.84/x
  3. Step 3: Cross multiply
    593,515x = 819,051.66 × 321,582.84
  4. Step 4: Simplify right side
    593,515x = 263,392,958,929.51
  5. Step 5: Solve for x
    x = 263,392,958,929.51/593,515
  6. Step 6: Final answer
    x = 443,784.84

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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.