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Finding the Fourth Proportional to 317,657.66, 438,381.87 and 190,330.52

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Solution

The fourth proportional to 317,657.66, 438,381.87 and 190,330.52 is: 262,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,657.66 : 438,381.87 = 190,330.52 : x
  2. Step 2: Convert to fraction form
    317,657.66/438,381.87 = 190,330.52/x
  3. Step 3: Cross multiply
    317,657.66x = 438,381.87 × 190,330.52
  4. Step 4: Simplify right side
    317,657.66x = 83,437,449,275.67
  5. Step 5: Solve for x
    x = 83,437,449,275.67/317,657.66
  6. Step 6: Final answer
    x = 262,664.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.