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Finding the Fourth Proportional to 364,191.40, 546,280.60 and 139,490.92

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Solution

The fourth proportional to 364,191.40, 546,280.60 and 139,490.92 is: 209,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,191.40 : 546,280.60 = 139,490.92 : x
  2. Step 2: Convert to fraction form
    364,191.40/546,280.60 = 139,490.92/x
  3. Step 3: Cross multiply
    364,191.40x = 546,280.60 × 139,490.92
  4. Step 4: Simplify right side
    364,191.40x = 76,201,183,472.15
  5. Step 5: Solve for x
    x = 76,201,183,472.15/364,191.40
  6. Step 6: Final answer
    x = 209,233.89

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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.