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Finding the Fourth Proportional to 517,141.35, 775,712.03 and 357,709.05

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Solution

The fourth proportional to 517,141.35, 775,712.03 and 357,709.05 is: 536,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,141.35 : 775,712.03 = 357,709.05 : x
  2. Step 2: Convert to fraction form
    517,141.35/775,712.03 = 357,709.05/x
  3. Step 3: Cross multiply
    517,141.35x = 775,712.03 × 357,709.05
  4. Step 4: Simplify right side
    517,141.35x = 277,479,211,536.33
  5. Step 5: Solve for x
    x = 277,479,211,536.33/517,141.35
  6. Step 6: Final answer
    x = 536,563.58

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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.