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Finding the Fourth Proportional to 395,240.40, 592,860.60 and 146,019.60

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Solution

The fourth proportional to 395,240.40, 592,860.60 and 146,019.60 is: 219,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,240.40 : 592,860.60 = 146,019.60 : x
  2. Step 2: Convert to fraction form
    395,240.40/592,860.60 = 146,019.60/x
  3. Step 3: Cross multiply
    395,240.40x = 592,860.60 × 146,019.60
  4. Step 4: Simplify right side
    395,240.40x = 86,569,267,667.76
  5. Step 5: Solve for x
    x = 86,569,267,667.76/395,240.40
  6. Step 6: Final answer
    x = 219,029.40

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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.