Home / 825,458.51-1,139,296.12-535,429.50

Finding the Fourth Proportional to 825,458.51, 1,139,296.12 and 535,429.50

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Solution

The fourth proportional to 825,458.51, 1,139,296.12 and 535,429.50 is: 738,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,458.51 : 1,139,296.12 = 535,429.50 : x
  2. Step 2: Convert to fraction form
    825,458.51/1,139,296.12 = 535,429.50/x
  3. Step 3: Cross multiply
    825,458.51x = 1,139,296.12 × 535,429.50
  4. Step 4: Simplify right side
    825,458.51x = 610,012,750,544.97
  5. Step 5: Solve for x
    x = 610,012,750,544.97/825,458.51
  6. Step 6: Final answer
    x = 738,998.69

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Why These Related Problems?

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