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Finding the Fourth Proportional to 567,628.40, 850,276.20 and 287,303.60

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Solution

The fourth proportional to 567,628.40, 850,276.20 and 287,303.60 is: 430,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,628.40 : 850,276.20 = 287,303.60 : x
  2. Step 2: Convert to fraction form
    567,628.40/850,276.20 = 287,303.60/x
  3. Step 3: Cross multiply
    567,628.40x = 850,276.20 × 287,303.60
  4. Step 4: Simplify right side
    567,628.40x = 244,287,413,254.32
  5. Step 5: Solve for x
    x = 244,287,413,254.32/567,628.40
  6. Step 6: Final answer
    x = 430,365.03

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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.