Home / 827,590.80-1,241,386.20-512,662.80

Finding the Fourth Proportional to 827,590.80, 1,241,386.20 and 512,662.80

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Solution

The fourth proportional to 827,590.80, 1,241,386.20 and 512,662.80 is: 768,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,590.80 : 1,241,386.20 = 512,662.80 : x
  2. Step 2: Convert to fraction form
    827,590.80/1,241,386.20 = 512,662.80/x
  3. Step 3: Cross multiply
    827,590.80x = 1,241,386.20 × 512,662.80
  4. Step 4: Simplify right side
    827,590.80x = 636,412,525,173.36
  5. Step 5: Solve for x
    x = 636,412,525,173.36/827,590.80
  6. Step 6: Final answer
    x = 768,994.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.