Home / 783,714.69-1,081,538.12-439,626.89

Finding the Fourth Proportional to 783,714.69, 1,081,538.12 and 439,626.89

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Solution

The fourth proportional to 783,714.69, 1,081,538.12 and 439,626.89 is: 606,691.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,714.69 : 1,081,538.12 = 439,626.89 : x
  2. Step 2: Convert to fraction form
    783,714.69/1,081,538.12 = 439,626.89/x
  3. Step 3: Cross multiply
    783,714.69x = 1,081,538.12 × 439,626.89
  4. Step 4: Simplify right side
    783,714.69x = 475,473,243,914.96
  5. Step 5: Solve for x
    x = 475,473,243,914.96/783,714.69
  6. Step 6: Final answer
    x = 606,691.76

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Half scale
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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.