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Finding the Fourth Proportional to 361,874.40, 542,811.60 and 235,903.20

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Solution

The fourth proportional to 361,874.40, 542,811.60 and 235,903.20 is: 353,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,874.40 : 542,811.60 = 235,903.20 : x
  2. Step 2: Convert to fraction form
    361,874.40/542,811.60 = 235,903.20/x
  3. Step 3: Cross multiply
    361,874.40x = 542,811.60 × 235,903.20
  4. Step 4: Simplify right side
    361,874.40x = 128,050,993,437.12
  5. Step 5: Solve for x
    x = 128,050,993,437.12/361,874.40
  6. Step 6: Final answer
    x = 353,854.80

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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.