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Finding the Fourth Proportional to 493,234.80, 739,852.20 and 358,734.30

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Solution

The fourth proportional to 493,234.80, 739,852.20 and 358,734.30 is: 538,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,234.80 : 739,852.20 = 358,734.30 : x
  2. Step 2: Convert to fraction form
    493,234.80/739,852.20 = 358,734.30/x
  3. Step 3: Cross multiply
    493,234.80x = 739,852.20 × 358,734.30
  4. Step 4: Simplify right side
    493,234.80x = 265,410,361,070.46
  5. Step 5: Solve for x
    x = 265,410,361,070.46/493,234.80
  6. Step 6: Final answer
    x = 538,101.45

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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.