Home / 756,085.52-1,043,394.86-411,920.38

Finding the Fourth Proportional to 756,085.52, 1,043,394.86 and 411,920.38

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Solution

The fourth proportional to 756,085.52, 1,043,394.86 and 411,920.38 is: 568,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,085.52 : 1,043,394.86 = 411,920.38 : x
  2. Step 2: Convert to fraction form
    756,085.52/1,043,394.86 = 411,920.38/x
  3. Step 3: Cross multiply
    756,085.52x = 1,043,394.86 × 411,920.38
  4. Step 4: Simplify right side
    756,085.52x = 429,795,607,221.25
  5. Step 5: Solve for x
    x = 429,795,607,221.25/756,085.52
  6. Step 6: Final answer
    x = 568,448.40

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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.