Home / 805,331.13-1,111,357.67-442,761.15

Finding the Fourth Proportional to 805,331.13, 1,111,357.67 and 442,761.15

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Solution

The fourth proportional to 805,331.13, 1,111,357.67 and 442,761.15 is: 611,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,331.13 : 1,111,357.67 = 442,761.15 : x
  2. Step 2: Convert to fraction form
    805,331.13/1,111,357.67 = 442,761.15/x
  3. Step 3: Cross multiply
    805,331.13x = 1,111,357.67 × 442,761.15
  4. Step 4: Simplify right side
    805,331.13x = 492,066,001,984.31
  5. Step 5: Solve for x
    x = 492,066,001,984.31/805,331.13
  6. Step 6: Final answer
    x = 611,010.78

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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.