Home / 641,370.08-884,950.13-383,208.26

Finding the Fourth Proportional to 641,370.08, 884,950.13 and 383,208.26

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Solution

The fourth proportional to 641,370.08, 884,950.13 and 383,208.26 is: 528,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,370.08 : 884,950.13 = 383,208.26 : x
  2. Step 2: Convert to fraction form
    641,370.08/884,950.13 = 383,208.26/x
  3. Step 3: Cross multiply
    641,370.08x = 884,950.13 × 383,208.26
  4. Step 4: Simplify right side
    641,370.08x = 339,120,193,163.28
  5. Step 5: Solve for x
    x = 339,120,193,163.28/641,370.08
  6. Step 6: Final answer
    x = 528,743.40

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Double scale
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Similar ratio
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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.