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Finding the Fourth Proportional to 519,234.70, 778,852.05 and 294,508.30

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Solution

The fourth proportional to 519,234.70, 778,852.05 and 294,508.30 is: 441,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,234.70 : 778,852.05 = 294,508.30 : x
  2. Step 2: Convert to fraction form
    519,234.70/778,852.05 = 294,508.30/x
  3. Step 3: Cross multiply
    519,234.70x = 778,852.05 × 294,508.30
  4. Step 4: Simplify right side
    519,234.70x = 229,378,393,197.02
  5. Step 5: Solve for x
    x = 229,378,393,197.02/519,234.70
  6. Step 6: Final answer
    x = 441,762.45

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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.