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Finding the Fourth Proportional to 562,325.20, 842,554.64 and 395,763.28

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Solution

The fourth proportional to 562,325.20, 842,554.64 and 395,763.28 is: 592,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,325.20 : 842,554.64 = 395,763.28 : x
  2. Step 2: Convert to fraction form
    562,325.20/842,554.64 = 395,763.28/x
  3. Step 3: Cross multiply
    562,325.20x = 842,554.64 × 395,763.28
  4. Step 4: Simplify right side
    562,325.20x = 333,452,187,905.62
  5. Step 5: Solve for x
    x = 333,452,187,905.62/562,325.20
  6. Step 6: Final answer
    x = 592,988.16

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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.