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Finding the Fourth Proportional to 328,746.30, 493,119.45 and 250,014.30

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Solution

The fourth proportional to 328,746.30, 493,119.45 and 250,014.30 is: 375,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,746.30 : 493,119.45 = 250,014.30 : x
  2. Step 2: Convert to fraction form
    328,746.30/493,119.45 = 250,014.30/x
  3. Step 3: Cross multiply
    328,746.30x = 493,119.45 × 250,014.30
  4. Step 4: Simplify right side
    328,746.30x = 123,286,914,108.14
  5. Step 5: Solve for x
    x = 123,286,914,108.14/328,746.30
  6. Step 6: Final answer
    x = 375,021.45

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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.