Home / 805,639.17-1,111,786.08-443,086.21

Finding the Fourth Proportional to 805,639.17, 1,111,786.08 and 443,086.21

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Solution

The fourth proportional to 805,639.17, 1,111,786.08 and 443,086.21 is: 611,461.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,639.17 : 1,111,786.08 = 443,086.21 : x
  2. Step 2: Convert to fraction form
    805,639.17/1,111,786.08 = 443,086.21/x
  3. Step 3: Cross multiply
    805,639.17x = 1,111,786.08 × 443,086.21
  4. Step 4: Simplify right side
    805,639.17x = 492,617,077,738.49
  5. Step 5: Solve for x
    x = 492,617,077,738.49/805,639.17
  6. Step 6: Final answer
    x = 611,461.18

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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.