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Finding the Fourth Proportional to 570,854.28, 787,399.11 and 367,162.86

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Solution

The fourth proportional to 570,854.28, 787,399.11 and 367,162.86 is: 506,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,854.28 : 787,399.11 = 367,162.86 : x
  2. Step 2: Convert to fraction form
    570,854.28/787,399.11 = 367,162.86/x
  3. Step 3: Cross multiply
    570,854.28x = 787,399.11 × 367,162.86
  4. Step 4: Simplify right side
    570,854.28x = 289,103,709,189.06
  5. Step 5: Solve for x
    x = 289,103,709,189.06/570,854.28
  6. Step 6: Final answer
    x = 506,440.47

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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.