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Finding the Fourth Proportional to 863,889.12, 1,191,611.93 and 524,357.37

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Solution

The fourth proportional to 863,889.12, 1,191,611.93 and 524,357.37 is: 723,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,889.12 : 1,191,611.93 = 524,357.37 : x
  2. Step 2: Convert to fraction form
    863,889.12/1,191,611.93 = 524,357.37/x
  3. Step 3: Cross multiply
    863,889.12x = 1,191,611.93 × 524,357.37
  4. Step 4: Simplify right side
    863,889.12x = 624,830,495,053.64
  5. Step 5: Solve for x
    x = 624,830,495,053.64/863,889.12
  6. Step 6: Final answer
    x = 723,276.26

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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.