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Finding the Fourth Proportional to 640,365.41, 960,548.12 and 241,095.76

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Solution

The fourth proportional to 640,365.41, 960,548.12 and 241,095.76 is: 361,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,365.41 : 960,548.12 = 241,095.76 : x
  2. Step 2: Convert to fraction form
    640,365.41/960,548.12 = 241,095.76/x
  3. Step 3: Cross multiply
    640,365.41x = 960,548.12 × 241,095.76
  4. Step 4: Simplify right side
    640,365.41x = 231,584,076,305.23
  5. Step 5: Solve for x
    x = 231,584,076,305.23/640,365.41
  6. Step 6: Final answer
    x = 361,643.64

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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.