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Finding the Fourth Proportional to 340,060.36, 509,499.42 and 238,643.32

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Solution

The fourth proportional to 340,060.36, 509,499.42 and 238,643.32 is: 357,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,060.36 : 509,499.42 = 238,643.32 : x
  2. Step 2: Convert to fraction form
    340,060.36/509,499.42 = 238,643.32/x
  3. Step 3: Cross multiply
    340,060.36x = 509,499.42 × 238,643.32
  4. Step 4: Simplify right side
    340,060.36x = 121,588,633,126.87
  5. Step 5: Solve for x
    x = 121,588,633,126.87/340,060.36
  6. Step 6: Final answer
    x = 357,550.15

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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.