Home / 856,699.11-1,182,230.60-469,511.55

Finding the Fourth Proportional to 856,699.11, 1,182,230.60 and 469,511.55

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Solution

The fourth proportional to 856,699.11, 1,182,230.60 and 469,511.55 is: 647,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,699.11 : 1,182,230.60 = 469,511.55 : x
  2. Step 2: Convert to fraction form
    856,699.11/1,182,230.60 = 469,511.55/x
  3. Step 3: Cross multiply
    856,699.11x = 1,182,230.60 × 469,511.55
  4. Step 4: Simplify right side
    856,699.11x = 555,070,919,115.87
  5. Step 5: Solve for x
    x = 555,070,919,115.87/856,699.11
  6. Step 6: Final answer
    x = 647,918.17

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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.