Home / 805,442.93-1,111,515.38-442,890.17

Finding the Fourth Proportional to 805,442.93, 1,111,515.38 and 442,890.17

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Solution

The fourth proportional to 805,442.93, 1,111,515.38 and 442,890.17 is: 611,190.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,442.93 : 1,111,515.38 = 442,890.17 : x
  2. Step 2: Convert to fraction form
    805,442.93/1,111,515.38 = 442,890.17/x
  3. Step 3: Cross multiply
    805,442.93x = 1,111,515.38 × 442,890.17
  4. Step 4: Simplify right side
    805,442.93x = 492,279,233,662.81
  5. Step 5: Solve for x
    x = 492,279,233,662.81/805,442.93
  6. Step 6: Final answer
    x = 611,190.71

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Double scale
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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.