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Finding the Fourth Proportional to 567,894.40, 850,675.20 and 390,601.60

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Solution

The fourth proportional to 567,894.40, 850,675.20 and 390,601.60 is: 585,100.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,894.40 : 850,675.20 = 390,601.60 : x
  2. Step 2: Convert to fraction form
    567,894.40/850,675.20 = 390,601.60/x
  3. Step 3: Cross multiply
    567,894.40x = 850,675.20 × 390,601.60
  4. Step 4: Simplify right side
    567,894.40x = 332,275,094,200.32
  5. Step 5: Solve for x
    x = 332,275,094,200.32/567,894.40
  6. Step 6: Final answer
    x = 585,100.14

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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.