Home / 805,368.43-1,111,380.02-442,789.50

Finding the Fourth Proportional to 805,368.43, 1,111,380.02 and 442,789.50

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Solution

The fourth proportional to 805,368.43, 1,111,380.02 and 442,789.50 is: 611,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,368.43 : 1,111,380.02 = 442,789.50 : x
  2. Step 2: Convert to fraction form
    805,368.43/1,111,380.02 = 442,789.50/x
  3. Step 3: Cross multiply
    805,368.43x = 1,111,380.02 × 442,789.50
  4. Step 4: Simplify right side
    805,368.43x = 492,107,406,979.98
  5. Step 5: Solve for x
    x = 492,107,406,979.98/805,368.43
  6. Step 6: Final answer
    x = 611,033.89

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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.