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Finding the Fourth Proportional to 535,333.80, 803,000.70 and 219,628.20

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Solution

The fourth proportional to 535,333.80, 803,000.70 and 219,628.20 is: 329,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,333.80 : 803,000.70 = 219,628.20 : x
  2. Step 2: Convert to fraction form
    535,333.80/803,000.70 = 219,628.20/x
  3. Step 3: Cross multiply
    535,333.80x = 803,000.70 × 219,628.20
  4. Step 4: Simplify right side
    535,333.80x = 176,361,598,339.74
  5. Step 5: Solve for x
    x = 176,361,598,339.74/535,333.80
  6. Step 6: Final answer
    x = 329,442.30

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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.