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Finding the Fourth Proportional to 706,052.80, 1,058,423.10 and 492,820.30

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Solution

The fourth proportional to 706,052.80, 1,058,423.10 and 492,820.30 is: 738,772.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,052.80 : 1,058,423.10 = 492,820.30 : x
  2. Step 2: Convert to fraction form
    706,052.80/1,058,423.10 = 492,820.30/x
  3. Step 3: Cross multiply
    706,052.80x = 1,058,423.10 × 492,820.30
  4. Step 4: Simplify right side
    706,052.80x = 521,612,389,668.93
  5. Step 5: Solve for x
    x = 521,612,389,668.93/706,052.80
  6. Step 6: Final answer
    x = 738,772.50

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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.