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Finding the Fourth Proportional to 549,200.80, 824,319.60 and 339,248.80

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Solution

The fourth proportional to 549,200.80, 824,319.60 and 339,248.80 is: 509,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,200.80 : 824,319.60 = 339,248.80 : x
  2. Step 2: Convert to fraction form
    549,200.80/824,319.60 = 339,248.80/x
  3. Step 3: Cross multiply
    549,200.80x = 824,319.60 × 339,248.80
  4. Step 4: Simplify right side
    549,200.80x = 279,649,435,116.48
  5. Step 5: Solve for x
    x = 279,649,435,116.48/549,200.80
  6. Step 6: Final answer
    x = 509,193.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.