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Finding the Fourth Proportional to 549,967.20, 768,295.20 and 549,967.20

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Solution

The fourth proportional to 549,967.20, 768,295.20 and 549,967.20 is: 768,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,967.20 : 768,295.20 = 549,967.20 : x
  2. Step 2: Convert to fraction form
    549,967.20/768,295.20 = 549,967.20/x
  3. Step 3: Cross multiply
    549,967.20x = 768,295.20 × 549,967.20
  4. Step 4: Simplify right side
    549,967.20x = 422,537,159,917.44
  5. Step 5: Solve for x
    x = 422,537,159,917.44/549,967.20
  6. Step 6: Final answer
    x = 768,295.20

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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.