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Finding the Fourth Proportional to 517,365.41, 713,353.59 and 354,100.67

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Solution

The fourth proportional to 517,365.41, 713,353.59 and 354,100.67 is: 488,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,365.41 : 713,353.59 = 354,100.67 : x
  2. Step 2: Convert to fraction form
    517,365.41/713,353.59 = 354,100.67/x
  3. Step 3: Cross multiply
    517,365.41x = 713,353.59 × 354,100.67
  4. Step 4: Simplify right side
    517,365.41x = 252,598,984,165.91
  5. Step 5: Solve for x
    x = 252,598,984,165.91/517,365.41
  6. Step 6: Final answer
    x = 488,240.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.