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Finding the Fourth Proportional to 566,892.34, 782,311.39 and 312,243.53

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Solution

The fourth proportional to 566,892.34, 782,311.39 and 312,243.53 is: 430,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,892.34 : 782,311.39 = 312,243.53 : x
  2. Step 2: Convert to fraction form
    566,892.34/782,311.39 = 312,243.53/x
  3. Step 3: Cross multiply
    566,892.34x = 782,311.39 × 312,243.53
  4. Step 4: Simplify right side
    566,892.34x = 244,271,668,214.31
  5. Step 5: Solve for x
    x = 244,271,668,214.31/566,892.34
  6. Step 6: Final answer
    x = 430,896.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.