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Finding the Fourth Proportional to 829,636.80, 1,241,344.80 and 549,700.80

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Solution

The fourth proportional to 829,636.80, 1,241,344.80 and 549,700.80 is: 822,490.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,636.80 : 1,241,344.80 = 549,700.80 : x
  2. Step 2: Convert to fraction form
    829,636.80/1,241,344.80 = 549,700.80/x
  3. Step 3: Cross multiply
    829,636.80x = 1,241,344.80 × 549,700.80
  4. Step 4: Simplify right side
    829,636.80x = 682,368,229,635.84
  5. Step 5: Solve for x
    x = 682,368,229,635.84/829,636.80
  6. Step 6: Final answer
    x = 822,490.31

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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.