Home / 459,736.75-689,605.13-127,312.75

Finding the Fourth Proportional to 459,736.75, 689,605.13 and 127,312.75

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Solution

The fourth proportional to 459,736.75, 689,605.13 and 127,312.75 is: 190,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,736.75 : 689,605.13 = 127,312.75 : x
  2. Step 2: Convert to fraction form
    459,736.75/689,605.13 = 127,312.75/x
  3. Step 3: Cross multiply
    459,736.75x = 689,605.13 × 127,312.75
  4. Step 4: Simplify right side
    459,736.75x = 87,795,525,514.41
  5. Step 5: Solve for x
    x = 87,795,525,514.41/459,736.75
  6. Step 6: Final answer
    x = 190,969.13

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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.