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Finding the Fourth Proportional to 531,239.40, 796,859.10 and 194,279.40

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Solution

The fourth proportional to 531,239.40, 796,859.10 and 194,279.40 is: 291,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,239.40 : 796,859.10 = 194,279.40 : x
  2. Step 2: Convert to fraction form
    531,239.40/796,859.10 = 194,279.40/x
  3. Step 3: Cross multiply
    531,239.40x = 796,859.10 × 194,279.40
  4. Step 4: Simplify right side
    531,239.40x = 154,813,307,832.54
  5. Step 5: Solve for x
    x = 154,813,307,832.54/531,239.40
  6. Step 6: Final answer
    x = 291,419.10

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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.