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Finding the Fourth Proportional to 513,554.04, 770,661.56 and 277,059.96

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Solution

The fourth proportional to 513,554.04, 770,661.56 and 277,059.96 is: 415,768.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,554.04 : 770,661.56 = 277,059.96 : x
  2. Step 2: Convert to fraction form
    513,554.04/770,661.56 = 277,059.96/x
  3. Step 3: Cross multiply
    513,554.04x = 770,661.56 × 277,059.96
  4. Step 4: Simplify right side
    513,554.04x = 213,519,460,987.14
  5. Step 5: Solve for x
    x = 213,519,460,987.14/513,554.04
  6. Step 6: Final answer
    x = 415,768.24

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Half scale
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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.