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Finding the Fourth Proportional to 524,095.70, 786,143.55 and 335,138.90

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Solution

The fourth proportional to 524,095.70, 786,143.55 and 335,138.90 is: 502,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,095.70 : 786,143.55 = 335,138.90 : x
  2. Step 2: Convert to fraction form
    524,095.70/786,143.55 = 335,138.90/x
  3. Step 3: Cross multiply
    524,095.70x = 786,143.55 × 335,138.90
  4. Step 4: Simplify right side
    524,095.70x = 263,467,284,589.10
  5. Step 5: Solve for x
    x = 263,467,284,589.10/524,095.70
  6. Step 6: Final answer
    x = 502,708.35

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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.