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Finding the Fourth Proportional to 590,782.60, 886,001.10 and 211,659.40

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Solution

The fourth proportional to 590,782.60, 886,001.10 and 211,659.40 is: 317,427.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,782.60 : 886,001.10 = 211,659.40 : x
  2. Step 2: Convert to fraction form
    590,782.60/886,001.10 = 211,659.40/x
  3. Step 3: Cross multiply
    590,782.60x = 886,001.10 × 211,659.40
  4. Step 4: Simplify right side
    590,782.60x = 187,530,461,225.34
  5. Step 5: Solve for x
    x = 187,530,461,225.34/590,782.60
  6. Step 6: Final answer
    x = 317,427.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.