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Finding the Fourth Proportional to 631,124.70, 946,687.05 and 382,292.70

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Solution

The fourth proportional to 631,124.70, 946,687.05 and 382,292.70 is: 573,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,124.70 : 946,687.05 = 382,292.70 : x
  2. Step 2: Convert to fraction form
    631,124.70/946,687.05 = 382,292.70/x
  3. Step 3: Cross multiply
    631,124.70x = 946,687.05 × 382,292.70
  4. Step 4: Simplify right side
    631,124.70x = 361,911,548,399.54
  5. Step 5: Solve for x
    x = 361,911,548,399.54/631,124.70
  6. Step 6: Final answer
    x = 573,439.05

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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.