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Finding the Fourth Proportional to 570,711.47, 787,202.60 and 367,019.91

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Solution

The fourth proportional to 570,711.47, 787,202.60 and 367,019.91 is: 506,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,711.47 : 787,202.60 = 367,019.91 : x
  2. Step 2: Convert to fraction form
    570,711.47/787,202.60 = 367,019.91/x
  3. Step 3: Cross multiply
    570,711.47x = 787,202.60 × 367,019.91
  4. Step 4: Simplify right side
    570,711.47x = 288,919,027,633.15
  5. Step 5: Solve for x
    x = 288,919,027,633.15/570,711.47
  6. Step 6: Final answer
    x = 506,243.60

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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.