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Finding the Fourth Proportional to 595,308.76, 821,645.64 and 353,544.62

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Solution

The fourth proportional to 595,308.76, 821,645.64 and 353,544.62 is: 487,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,308.76 : 821,645.64 = 353,544.62 : x
  2. Step 2: Convert to fraction form
    595,308.76/821,645.64 = 353,544.62/x
  3. Step 3: Cross multiply
    595,308.76x = 821,645.64 × 353,544.62
  4. Step 4: Simplify right side
    595,308.76x = 290,488,391,460.23
  5. Step 5: Solve for x
    x = 290,488,391,460.23/595,308.76
  6. Step 6: Final answer
    x = 487,962.57

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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.