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Finding the Fourth Proportional to 403,326.40, 604,730.40 and 166,763.20

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Solution

The fourth proportional to 403,326.40, 604,730.40 and 166,763.20 is: 250,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,326.40 : 604,730.40 = 166,763.20 : x
  2. Step 2: Convert to fraction form
    403,326.40/604,730.40 = 166,763.20/x
  3. Step 3: Cross multiply
    403,326.40x = 604,730.40 × 166,763.20
  4. Step 4: Simplify right side
    403,326.40x = 100,846,776,641.28
  5. Step 5: Solve for x
    x = 100,846,776,641.28/403,326.40
  6. Step 6: Final answer
    x = 250,037.63

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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.