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Finding the Fourth Proportional to 518,039.40, 709,716.56 and 498,623.92

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Solution

The fourth proportional to 518,039.40, 709,716.56 and 498,623.92 is: 683,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,039.40 : 709,716.56 = 498,623.92 : x
  2. Step 2: Convert to fraction form
    518,039.40/709,716.56 = 498,623.92/x
  3. Step 3: Cross multiply
    518,039.40x = 709,716.56 × 498,623.92
  4. Step 4: Simplify right side
    518,039.40x = 353,881,653,236.12
  5. Step 5: Solve for x
    x = 353,881,653,236.12/518,039.40
  6. Step 6: Final answer
    x = 683,117.26

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.