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Finding the Fourth Proportional to 549,824.20, 770,859.80 and 549,824.20

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Solution

The fourth proportional to 549,824.20, 770,859.80 and 549,824.20 is: 770,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,824.20 : 770,859.80 = 549,824.20 : x
  2. Step 2: Convert to fraction form
    549,824.20/770,859.80 = 549,824.20/x
  3. Step 3: Cross multiply
    549,824.20x = 770,859.80 × 549,824.20
  4. Step 4: Simplify right side
    549,824.20x = 423,837,372,847.16
  5. Step 5: Solve for x
    x = 423,837,372,847.16/549,824.20
  6. Step 6: Final answer
    x = 770,859.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.