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Finding the Fourth Proportional to 549,042.80, 823,564.20 and 194,457.20

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Solution

The fourth proportional to 549,042.80, 823,564.20 and 194,457.20 is: 291,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,042.80 : 823,564.20 = 194,457.20 : x
  2. Step 2: Convert to fraction form
    549,042.80/823,564.20 = 194,457.20/x
  3. Step 3: Cross multiply
    549,042.80x = 823,564.20 × 194,457.20
  4. Step 4: Simplify right side
    549,042.80x = 160,147,988,352.24
  5. Step 5: Solve for x
    x = 160,147,988,352.24/549,042.80
  6. Step 6: Final answer
    x = 291,685.80

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Similar ratio
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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.