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Finding the Fourth Proportional to 548,307.90, 821,550.60 and 527,575.14

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Solution

The fourth proportional to 548,307.90, 821,550.60 and 527,575.14 is: 790,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,307.90 : 821,550.60 = 527,575.14 : x
  2. Step 2: Convert to fraction form
    548,307.90/821,550.60 = 527,575.14/x
  3. Step 3: Cross multiply
    548,307.90x = 821,550.60 × 527,575.14
  4. Step 4: Simplify right side
    548,307.90x = 433,429,672,812.08
  5. Step 5: Solve for x
    x = 433,429,672,812.08/548,307.90
  6. Step 6: Final answer
    x = 790,485.92

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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.