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Finding the Fourth Proportional to 640,365.98, 960,548.96 and 241,096.32

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Solution

The fourth proportional to 640,365.98, 960,548.96 and 241,096.32 is: 361,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,365.98 : 960,548.96 = 241,096.32 : x
  2. Step 2: Convert to fraction form
    640,365.98/960,548.96 = 241,096.32/x
  3. Step 3: Cross multiply
    640,365.98x = 960,548.96 × 241,096.32
  4. Step 4: Simplify right side
    640,365.98x = 231,584,820,038.57
  5. Step 5: Solve for x
    x = 231,584,820,038.57/640,365.98
  6. Step 6: Final answer
    x = 361,644.48

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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.