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Finding the Fourth Proportional to 829,656.80, 1,241,374.80 and 549,720.80

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Solution

The fourth proportional to 829,656.80, 1,241,374.80 and 549,720.80 is: 822,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,656.80 : 1,241,374.80 = 549,720.80 : x
  2. Step 2: Convert to fraction form
    829,656.80/1,241,374.80 = 549,720.80/x
  3. Step 3: Cross multiply
    829,656.80x = 1,241,374.80 × 549,720.80
  4. Step 4: Simplify right side
    829,656.80x = 682,409,548,155.84
  5. Step 5: Solve for x
    x = 682,409,548,155.84/829,656.80
  6. Step 6: Final answer
    x = 822,520.29

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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.