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Finding the Fourth Proportional to 574,876.68, 793,278.36 and 320,222.40

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Solution

The fourth proportional to 574,876.68, 793,278.36 and 320,222.40 is: 441,878.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,876.68 : 793,278.36 = 320,222.40 : x
  2. Step 2: Convert to fraction form
    574,876.68/793,278.36 = 320,222.40/x
  3. Step 3: Cross multiply
    574,876.68x = 793,278.36 × 320,222.40
  4. Step 4: Simplify right side
    574,876.68x = 254,025,500,307.26
  5. Step 5: Solve for x
    x = 254,025,500,307.26/574,876.68
  6. Step 6: Final answer
    x = 441,878.25

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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.