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Finding the Fourth Proportional to 521,590.82, 719,813.04 and 292,157.96

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Solution

The fourth proportional to 521,590.82, 719,813.04 and 292,157.96 is: 403,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,590.82 : 719,813.04 = 292,157.96 : x
  2. Step 2: Convert to fraction form
    521,590.82/719,813.04 = 292,157.96/x
  3. Step 3: Cross multiply
    521,590.82x = 719,813.04 × 292,157.96
  4. Step 4: Simplify right side
    521,590.82x = 210,299,109,347.80
  5. Step 5: Solve for x
    x = 210,299,109,347.80/521,590.82
  6. Step 6: Final answer
    x = 403,187.90

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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.