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Finding the Fourth Proportional to 664,040.16, 916,373.52 and 362,232

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Solution

The fourth proportional to 664,040.16, 916,373.52 and 362,232 is: 499,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,040.16 : 916,373.52 = 362,232 : x
  2. Step 2: Convert to fraction form
    664,040.16/916,373.52 = 362,232/x
  3. Step 3: Cross multiply
    664,040.16x = 916,373.52 × 362,232
  4. Step 4: Simplify right side
    664,040.16x = 331,939,812,896.64
  5. Step 5: Solve for x
    x = 331,939,812,896.64/664,040.16
  6. Step 6: Final answer
    x = 499,879.12

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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.