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Finding the Fourth Proportional to 829,836.80, 1,241,644.80 and 549,900.80

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Solution

The fourth proportional to 829,836.80, 1,241,644.80 and 549,900.80 is: 822,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,836.80 : 1,241,644.80 = 549,900.80 : x
  2. Step 2: Convert to fraction form
    829,836.80/1,241,644.80 = 549,900.80/x
  3. Step 3: Cross multiply
    829,836.80x = 1,241,644.80 × 549,900.80
  4. Step 4: Simplify right side
    829,836.80x = 682,781,468,835.84
  5. Step 5: Solve for x
    x = 682,781,468,835.84/829,836.80
  6. Step 6: Final answer
    x = 822,790.06

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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.