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Finding the Fourth Proportional to 526,050.80, 788,687.40 and 289,660.40

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Solution

The fourth proportional to 526,050.80, 788,687.40 and 289,660.40 is: 434,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,050.80 : 788,687.40 = 289,660.40 : x
  2. Step 2: Convert to fraction form
    526,050.80/788,687.40 = 289,660.40/x
  3. Step 3: Cross multiply
    526,050.80x = 788,687.40 × 289,660.40
  4. Step 4: Simplify right side
    526,050.80x = 228,451,507,758.96
  5. Step 5: Solve for x
    x = 228,451,507,758.96/526,050.80
  6. Step 6: Final answer
    x = 434,276.51

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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.