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Finding the Fourth Proportional to 571,507.60, 856,937.40 and 216,533.20

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Solution

The fourth proportional to 571,507.60, 856,937.40 and 216,533.20 is: 324,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,507.60 : 856,937.40 = 216,533.20 : x
  2. Step 2: Convert to fraction form
    571,507.60/856,937.40 = 216,533.20/x
  3. Step 3: Cross multiply
    571,507.60x = 856,937.40 × 216,533.20
  4. Step 4: Simplify right side
    571,507.60x = 185,555,397,421.68
  5. Step 5: Solve for x
    x = 185,555,397,421.68/571,507.60
  6. Step 6: Final answer
    x = 324,677.04

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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.