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Finding the Fourth Proportional to 593,245.76, 818,762.40 and 378,317.12

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Solution

The fourth proportional to 593,245.76, 818,762.40 and 378,317.12 is: 522,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,245.76 : 818,762.40 = 378,317.12 : x
  2. Step 2: Convert to fraction form
    593,245.76/818,762.40 = 378,317.12/x
  3. Step 3: Cross multiply
    593,245.76x = 818,762.40 × 378,317.12
  4. Step 4: Simplify right side
    593,245.76x = 309,751,833,132.29
  5. Step 5: Solve for x
    x = 309,751,833,132.29/593,245.76
  6. Step 6: Final answer
    x = 522,130.72

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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.