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Finding the Fourth Proportional to 549,968.20, 768,296.60 and 549,968.20

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Solution

The fourth proportional to 549,968.20, 768,296.60 and 549,968.20 is: 768,296.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,968.20 : 768,296.60 = 549,968.20 : x
  2. Step 2: Convert to fraction form
    549,968.20/768,296.60 = 549,968.20/x
  3. Step 3: Cross multiply
    549,968.20x = 768,296.60 × 549,968.20
  4. Step 4: Simplify right side
    549,968.20x = 422,538,698,168.12
  5. Step 5: Solve for x
    x = 422,538,698,168.12/549,968.20
  6. Step 6: Final answer
    x = 768,296.60

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1.5x scale

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.