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Finding the Fourth Proportional to 593,790, 819,430.20 and 325,518

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Solution

The fourth proportional to 593,790, 819,430.20 and 325,518 is: 449,214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,790 : 819,430.20 = 325,518 : x
  2. Step 2: Convert to fraction form
    593,790/819,430.20 = 325,518/x
  3. Step 3: Cross multiply
    593,790x = 819,430.20 × 325,518
  4. Step 4: Simplify right side
    593,790x = 266,739,279,843.60
  5. Step 5: Solve for x
    x = 266,739,279,843.60/593,790
  6. Step 6: Final answer
    x = 449,214.84

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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.