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Finding the Fourth Proportional to 706,893.60, 1,058,007.60 and 548,263.20

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Solution

The fourth proportional to 706,893.60, 1,058,007.60 and 548,263.20 is: 820,585.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,893.60 : 1,058,007.60 = 548,263.20 : x
  2. Step 2: Convert to fraction form
    706,893.60/1,058,007.60 = 548,263.20/x
  3. Step 3: Cross multiply
    706,893.60x = 1,058,007.60 × 548,263.20
  4. Step 4: Simplify right side
    706,893.60x = 580,066,632,400.32
  5. Step 5: Solve for x
    x = 580,066,632,400.32/706,893.60
  6. Step 6: Final answer
    x = 820,585.49

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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.