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Finding the Fourth Proportional to 574,782.64, 793,140.48 and 353,984.98

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Solution

The fourth proportional to 574,782.64, 793,140.48 and 353,984.98 is: 488,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,782.64 : 793,140.48 = 353,984.98 : x
  2. Step 2: Convert to fraction form
    574,782.64/793,140.48 = 353,984.98/x
  3. Step 3: Cross multiply
    574,782.64x = 793,140.48 × 353,984.98
  4. Step 4: Simplify right side
    574,782.64x = 280,759,816,949.99
  5. Step 5: Solve for x
    x = 280,759,816,949.99/574,782.64
  6. Step 6: Final answer
    x = 488,462.59

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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.