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Finding the Fourth Proportional to 571,004.20, 856,506.30 and 549,231.40

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Solution

The fourth proportional to 571,004.20, 856,506.30 and 549,231.40 is: 823,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,004.20 : 856,506.30 = 549,231.40 : x
  2. Step 2: Convert to fraction form
    571,004.20/856,506.30 = 549,231.40/x
  3. Step 3: Cross multiply
    571,004.20x = 856,506.30 × 549,231.40
  4. Step 4: Simplify right side
    571,004.20x = 470,420,154,257.82
  5. Step 5: Solve for x
    x = 470,420,154,257.82/571,004.20
  6. Step 6: Final answer
    x = 823,847.10

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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.