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Finding the Fourth Proportional to 573,048.81, 859,601.70 and 218,090.34

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Solution

The fourth proportional to 573,048.81, 859,601.70 and 218,090.34 is: 327,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,048.81 : 859,601.70 = 218,090.34 : x
  2. Step 2: Convert to fraction form
    573,048.81/859,601.70 = 218,090.34/x
  3. Step 3: Cross multiply
    573,048.81x = 859,601.70 × 218,090.34
  4. Step 4: Simplify right side
    573,048.81x = 187,470,827,017.58
  5. Step 5: Solve for x
    x = 187,470,827,017.58/573,048.81
  6. Step 6: Final answer
    x = 327,146.35

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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.