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Finding the Fourth Proportional to 691,446.25, 954,195.83 and 373,494.25

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Solution

The fourth proportional to 691,446.25, 954,195.83 and 373,494.25 is: 515,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,446.25 : 954,195.83 = 373,494.25 : x
  2. Step 2: Convert to fraction form
    691,446.25/954,195.83 = 373,494.25/x
  3. Step 3: Cross multiply
    691,446.25x = 954,195.83 × 373,494.25
  4. Step 4: Simplify right side
    691,446.25x = 356,386,654,011.51
  5. Step 5: Solve for x
    x = 356,386,654,011.51/691,446.25
  6. Step 6: Final answer
    x = 515,422.07

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.