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Finding the Fourth Proportional to 567,216.80, 850,620.40 and 286,640.80

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Solution

The fourth proportional to 567,216.80, 850,620.40 and 286,640.80 is: 429,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,216.80 : 850,620.40 = 286,640.80 : x
  2. Step 2: Convert to fraction form
    567,216.80/850,620.40 = 286,640.80/x
  3. Step 3: Cross multiply
    567,216.80x = 850,620.40 × 286,640.80
  4. Step 4: Simplify right side
    567,216.80x = 243,822,511,952.32
  5. Step 5: Solve for x
    x = 243,822,511,952.32/567,216.80
  6. Step 6: Final answer
    x = 429,857.71

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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.