Home / 825,828.85-1,139,641.95-458,362.28

Finding the Fourth Proportional to 825,828.85, 1,139,641.95 and 458,362.28

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Solution

The fourth proportional to 825,828.85, 1,139,641.95 and 458,362.28 is: 632,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,828.85 : 1,139,641.95 = 458,362.28 : x
  2. Step 2: Convert to fraction form
    825,828.85/1,139,641.95 = 458,362.28/x
  3. Step 3: Cross multiply
    825,828.85x = 1,139,641.95 × 458,362.28
  4. Step 4: Simplify right side
    825,828.85x = 522,368,882,585.65
  5. Step 5: Solve for x
    x = 522,368,882,585.65/825,828.85
  6. Step 6: Final answer
    x = 632,538.91

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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.