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Finding the Fourth Proportional to 358,762.30, 538,144.10 and 336,840.36

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Solution

The fourth proportional to 358,762.30, 538,144.10 and 336,840.36 is: 505,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,762.30 : 538,144.10 = 336,840.36 : x
  2. Step 2: Convert to fraction form
    358,762.30/538,144.10 = 336,840.36/x
  3. Step 3: Cross multiply
    358,762.30x = 538,144.10 × 336,840.36
  4. Step 4: Simplify right side
    358,762.30x = 181,268,652,375.88
  5. Step 5: Solve for x
    x = 181,268,652,375.88/358,762.30
  6. Step 6: Final answer
    x = 505,261.15

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1.5x scale

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.