Home / 805,496.81-1,111,555.71-442,899.09

Finding the Fourth Proportional to 805,496.81, 1,111,555.71 and 442,899.09

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Solution

The fourth proportional to 805,496.81, 1,111,555.71 and 442,899.09 is: 611,184.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,496.81 : 1,111,555.71 = 442,899.09 : x
  2. Step 2: Convert to fraction form
    805,496.81/1,111,555.71 = 442,899.09/x
  3. Step 3: Cross multiply
    805,496.81x = 1,111,555.71 × 442,899.09
  4. Step 4: Simplify right side
    805,496.81x = 492,307,012,443.30
  5. Step 5: Solve for x
    x = 492,307,012,443.30/805,496.81
  6. Step 6: Final answer
    x = 611,184.31

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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.