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Finding the Fourth Proportional to 594,009.20, 891,013.80 and 214,929.20

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Solution

The fourth proportional to 594,009.20, 891,013.80 and 214,929.20 is: 322,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,009.20 : 891,013.80 = 214,929.20 : x
  2. Step 2: Convert to fraction form
    594,009.20/891,013.80 = 214,929.20/x
  3. Step 3: Cross multiply
    594,009.20x = 891,013.80 × 214,929.20
  4. Step 4: Simplify right side
    594,009.20x = 191,504,883,222.96
  5. Step 5: Solve for x
    x = 191,504,883,222.96/594,009.20
  6. Step 6: Final answer
    x = 322,393.80

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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.