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Finding the Fourth Proportional to 524,072.20, 786,108.30 and 335,115.40

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Solution

The fourth proportional to 524,072.20, 786,108.30 and 335,115.40 is: 502,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,072.20 : 786,108.30 = 335,115.40 : x
  2. Step 2: Convert to fraction form
    524,072.20/786,108.30 = 335,115.40/x
  3. Step 3: Cross multiply
    524,072.20x = 786,108.30 × 335,115.40
  4. Step 4: Simplify right side
    524,072.20x = 263,436,997,397.82
  5. Step 5: Solve for x
    x = 263,436,997,397.82/524,072.20
  6. Step 6: Final answer
    x = 502,673.10

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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.