Home / 805,890.06-1,112,130.86-443,341.49

Finding the Fourth Proportional to 805,890.06, 1,112,130.86 and 443,341.49

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Solution

The fourth proportional to 805,890.06, 1,112,130.86 and 443,341.49 is: 611,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,890.06 : 1,112,130.86 = 443,341.49 : x
  2. Step 2: Convert to fraction form
    805,890.06/1,112,130.86 = 443,341.49/x
  3. Step 3: Cross multiply
    805,890.06x = 1,112,130.86 × 443,341.49
  4. Step 4: Simplify right side
    805,890.06x = 493,053,744,770.02
  5. Step 5: Solve for x
    x = 493,053,744,770.02/805,890.06
  6. Step 6: Final answer
    x = 611,812.66

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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.