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Finding the Fourth Proportional to 631,009.25, 946,515.45 and 251,960.84

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Solution

The fourth proportional to 631,009.25, 946,515.45 and 251,960.84 is: 377,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,009.25 : 946,515.45 = 251,960.84 : x
  2. Step 2: Convert to fraction form
    631,009.25/946,515.45 = 251,960.84/x
  3. Step 3: Cross multiply
    631,009.25x = 946,515.45 × 251,960.84
  4. Step 4: Simplify right side
    631,009.25x = 238,484,826,595.17
  5. Step 5: Solve for x
    x = 238,484,826,595.17/631,009.25
  6. Step 6: Final answer
    x = 377,941.89

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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.