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Finding the Fourth Proportional to 549,992, 759,018.84 and 308,352.08

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Solution

The fourth proportional to 549,992, 759,018.84 and 308,352.08 is: 425,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,992 : 759,018.84 = 308,352.08 : x
  2. Step 2: Convert to fraction form
    549,992/759,018.84 = 308,352.08/x
  3. Step 3: Cross multiply
    549,992x = 759,018.84 × 308,352.08
  4. Step 4: Simplify right side
    549,992x = 234,045,038,073.19
  5. Step 5: Solve for x
    x = 234,045,038,073.19/549,992
  6. Step 6: Final answer
    x = 425,542.62

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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.