Home / 805,617.95-1,111,730.47-443,041.70

Finding the Fourth Proportional to 805,617.95, 1,111,730.47 and 443,041.70

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Solution

The fourth proportional to 805,617.95, 1,111,730.47 and 443,041.70 is: 611,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,617.95 : 1,111,730.47 = 443,041.70 : x
  2. Step 2: Convert to fraction form
    805,617.95/1,111,730.47 = 443,041.70/x
  3. Step 3: Cross multiply
    805,617.95x = 1,111,730.47 × 443,041.70
  4. Step 4: Simplify right side
    805,617.95x = 492,542,950,704.34
  5. Step 5: Solve for x
    x = 492,542,950,704.34/805,617.95
  6. Step 6: Final answer
    x = 611,385.28

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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.