Home / 805,803.12-1,112,010.66-443,264.13

Finding the Fourth Proportional to 805,803.12, 1,112,010.66 and 443,264.13

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Solution

The fourth proportional to 805,803.12, 1,112,010.66 and 443,264.13 is: 611,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,803.12 : 1,112,010.66 = 443,264.13 : x
  2. Step 2: Convert to fraction form
    805,803.12/1,112,010.66 = 443,264.13/x
  3. Step 3: Cross multiply
    805,803.12x = 1,112,010.66 × 443,264.13
  4. Step 4: Simplify right side
    805,803.12x = 492,914,437,755.63
  5. Step 5: Solve for x
    x = 492,914,437,755.63/805,803.12
  6. Step 6: Final answer
    x = 611,705.79

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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.