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Finding the Fourth Proportional to 590,886.45, 815,412.23 and 361,426.88

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Solution

The fourth proportional to 590,886.45, 815,412.23 and 361,426.88 is: 498,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,886.45 : 815,412.23 = 361,426.88 : x
  2. Step 2: Convert to fraction form
    590,886.45/815,412.23 = 361,426.88/x
  3. Step 3: Cross multiply
    590,886.45x = 815,412.23 × 361,426.88
  4. Step 4: Simplify right side
    590,886.45x = 294,711,892,318.55
  5. Step 5: Solve for x
    x = 294,711,892,318.55/590,886.45
  6. Step 6: Final answer
    x = 498,762.31

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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.