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Finding the Fourth Proportional to 520,699.24, 718,595.94 and 294,365.80

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Solution

The fourth proportional to 520,699.24, 718,595.94 and 294,365.80 is: 406,242.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,699.24 : 718,595.94 = 294,365.80 : x
  2. Step 2: Convert to fraction form
    520,699.24/718,595.94 = 294,365.80/x
  3. Step 3: Cross multiply
    520,699.24x = 718,595.94 × 294,365.80
  4. Step 4: Simplify right side
    520,699.24x = 211,530,068,754.85
  5. Step 5: Solve for x
    x = 211,530,068,754.85/520,699.24
  6. Step 6: Final answer
    x = 406,242.32

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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.