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Finding the Fourth Proportional to 549,856.81, 758,806.16 and 304,849.06

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Solution

The fourth proportional to 549,856.81, 758,806.16 and 304,849.06 is: 420,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,856.81 : 758,806.16 = 304,849.06 : x
  2. Step 2: Convert to fraction form
    549,856.81/758,806.16 = 304,849.06/x
  3. Step 3: Cross multiply
    549,856.81x = 758,806.16 × 304,849.06
  4. Step 4: Simplify right side
    549,856.81x = 231,321,341,176.95
  5. Step 5: Solve for x
    x = 231,321,341,176.95/549,856.81
  6. Step 6: Final answer
    x = 420,693.78

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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.