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Finding the Fourth Proportional to 619,218.04, 854,530.68 and 347,346.40

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Solution

The fourth proportional to 619,218.04, 854,530.68 and 347,346.40 is: 479,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,218.04 : 854,530.68 = 347,346.40 : x
  2. Step 2: Convert to fraction form
    619,218.04/854,530.68 = 347,346.40/x
  3. Step 3: Cross multiply
    619,218.04x = 854,530.68 × 347,346.40
  4. Step 4: Simplify right side
    619,218.04x = 296,818,155,387.55
  5. Step 5: Solve for x
    x = 296,818,155,387.55/619,218.04
  6. Step 6: Final answer
    x = 479,343.52

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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.