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Finding the Fourth Proportional to 592,810.60, 889,215.90 and 380,234.20

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Solution

The fourth proportional to 592,810.60, 889,215.90 and 380,234.20 is: 570,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,810.60 : 889,215.90 = 380,234.20 : x
  2. Step 2: Convert to fraction form
    592,810.60/889,215.90 = 380,234.20/x
  3. Step 3: Cross multiply
    592,810.60x = 889,215.90 × 380,234.20
  4. Step 4: Simplify right side
    592,810.60x = 338,110,296,363.78
  5. Step 5: Solve for x
    x = 338,110,296,363.78/592,810.60
  6. Step 6: Final answer
    x = 570,351.30

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Double scale
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Similar ratio
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1.5x scale

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.