Home / 816,786.48-1,127,000.17-477,189.12

Finding the Fourth Proportional to 816,786.48, 1,127,000.17 and 477,189.12

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Solution

The fourth proportional to 816,786.48, 1,127,000.17 and 477,189.12 is: 658,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,786.48 : 1,127,000.17 = 477,189.12 : x
  2. Step 2: Convert to fraction form
    816,786.48/1,127,000.17 = 477,189.12/x
  3. Step 3: Cross multiply
    816,786.48x = 1,127,000.17 × 477,189.12
  4. Step 4: Simplify right side
    816,786.48x = 537,792,216,976.21
  5. Step 5: Solve for x
    x = 537,792,216,976.21/816,786.48
  6. Step 6: Final answer
    x = 658,424.48

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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.