Home / 825,826.85-1,139,639.19-458,360.28

Finding the Fourth Proportional to 825,826.85, 1,139,639.19 and 458,360.28

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Solution

The fourth proportional to 825,826.85, 1,139,639.19 and 458,360.28 is: 632,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,826.85 : 1,139,639.19 = 458,360.28 : x
  2. Step 2: Convert to fraction form
    825,826.85/1,139,639.19 = 458,360.28/x
  3. Step 3: Cross multiply
    825,826.85x = 1,139,639.19 × 458,360.28
  4. Step 4: Simplify right side
    825,826.85x = 522,365,338,227.37
  5. Step 5: Solve for x
    x = 522,365,338,227.37/825,826.85
  6. Step 6: Final answer
    x = 632,536.15

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1.5x scale

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.