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Finding the Fourth Proportional to 562,021.60, 841,282.80 and 324,659.20

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Solution

The fourth proportional to 562,021.60, 841,282.80 and 324,659.20 is: 485,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,021.60 : 841,282.80 = 324,659.20 : x
  2. Step 2: Convert to fraction form
    562,021.60/841,282.80 = 324,659.20/x
  3. Step 3: Cross multiply
    562,021.60x = 841,282.80 × 324,659.20
  4. Step 4: Simplify right side
    562,021.60x = 273,130,200,821.76
  5. Step 5: Solve for x
    x = 273,130,200,821.76/562,021.60
  6. Step 6: Final answer
    x = 485,978.12

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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.