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Finding the Fourth Proportional to 400,888.54, 601,443.53 and 356,823.23

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Solution

The fourth proportional to 400,888.54, 601,443.53 and 356,823.23 is: 535,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,888.54 : 601,443.53 = 356,823.23 : x
  2. Step 2: Convert to fraction form
    400,888.54/601,443.53 = 356,823.23/x
  3. Step 3: Cross multiply
    400,888.54x = 601,443.53 × 356,823.23
  4. Step 4: Simplify right side
    400,888.54x = 214,609,019,583.96
  5. Step 5: Solve for x
    x = 214,609,019,583.96/400,888.54
  6. Step 6: Final answer
    x = 535,333.38

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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.