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Finding the Fourth Proportional to 352,459.67, 486,394.72 and 191,314.70

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Solution

The fourth proportional to 352,459.67, 486,394.72 and 191,314.70 is: 264,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,459.67 : 486,394.72 = 191,314.70 : x
  2. Step 2: Convert to fraction form
    352,459.67/486,394.72 = 191,314.70/x
  3. Step 3: Cross multiply
    352,459.67x = 486,394.72 × 191,314.70
  4. Step 4: Simplify right side
    352,459.67x = 93,054,457,506.41
  5. Step 5: Solve for x
    x = 93,054,457,506.41/352,459.67
  6. Step 6: Final answer
    x = 264,014.48

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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.