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Finding the Fourth Proportional to 629,279.40, 943,919.10 and 186,047.40

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Solution

The fourth proportional to 629,279.40, 943,919.10 and 186,047.40 is: 279,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,279.40 : 943,919.10 = 186,047.40 : x
  2. Step 2: Convert to fraction form
    629,279.40/943,919.10 = 186,047.40/x
  3. Step 3: Cross multiply
    629,279.40x = 943,919.10 × 186,047.40
  4. Step 4: Simplify right side
    629,279.40x = 175,613,694,365.34
  5. Step 5: Solve for x
    x = 175,613,694,365.34/629,279.40
  6. Step 6: Final answer
    x = 279,071.10

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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.