Home / 641,016.77-884,629.89-369,077.90

Finding the Fourth Proportional to 641,016.77, 884,629.89 and 369,077.90

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Solution

The fourth proportional to 641,016.77, 884,629.89 and 369,077.90 is: 509,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,016.77 : 884,629.89 = 369,077.90 : x
  2. Step 2: Convert to fraction form
    641,016.77/884,629.89 = 369,077.90/x
  3. Step 3: Cross multiply
    641,016.77x = 884,629.89 × 369,077.90
  4. Step 4: Simplify right side
    641,016.77x = 326,497,337,655.28
  5. Step 5: Solve for x
    x = 326,497,337,655.28/641,016.77
  6. Step 6: Final answer
    x = 509,342.90

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Double scale
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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.