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Finding the Fourth Proportional to 402,686.64, 604,467.54 and 162,965.52

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Solution

The fourth proportional to 402,686.64, 604,467.54 and 162,965.52 is: 244,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,686.64 : 604,467.54 = 162,965.52 : x
  2. Step 2: Convert to fraction form
    402,686.64/604,467.54 = 162,965.52/x
  3. Step 3: Cross multiply
    402,686.64x = 604,467.54 × 162,965.52
  4. Step 4: Simplify right side
    402,686.64x = 98,507,366,979.22
  5. Step 5: Solve for x
    x = 98,507,366,979.22/402,686.64
  6. Step 6: Final answer
    x = 244,625.37

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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.