Home / 816,731.54-1,126,923.54-477,134.18

Finding the Fourth Proportional to 816,731.54, 1,126,923.54 and 477,134.18

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Solution

The fourth proportional to 816,731.54, 1,126,923.54 and 477,134.18 is: 658,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,731.54 : 1,126,923.54 = 477,134.18 : x
  2. Step 2: Convert to fraction form
    816,731.54/1,126,923.54 = 477,134.18/x
  3. Step 3: Cross multiply
    816,731.54x = 1,126,923.54 × 477,134.18
  4. Step 4: Simplify right side
    816,731.54x = 537,693,739,180.60
  5. Step 5: Solve for x
    x = 537,693,739,180.60/816,731.54
  6. Step 6: Final answer
    x = 658,348.20

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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.