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Finding the Fourth Proportional to 549,910.80, 824,866.20 and 371,451.60

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Solution

The fourth proportional to 549,910.80, 824,866.20 and 371,451.60 is: 557,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,910.80 : 824,866.20 = 371,451.60 : x
  2. Step 2: Convert to fraction form
    549,910.80/824,866.20 = 371,451.60/x
  3. Step 3: Cross multiply
    549,910.80x = 824,866.20 × 371,451.60
  4. Step 4: Simplify right side
    549,910.80x = 306,397,869,775.92
  5. Step 5: Solve for x
    x = 306,397,869,775.92/549,910.80
  6. Step 6: Final answer
    x = 557,177.40

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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.