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Finding the Fourth Proportional to 535,621.82, 803,641.80 and 235,891.76

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Solution

The fourth proportional to 535,621.82, 803,641.80 and 235,891.76 is: 353,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,621.82 : 803,641.80 = 235,891.76 : x
  2. Step 2: Convert to fraction form
    535,621.82/803,641.80 = 235,891.76/x
  3. Step 3: Cross multiply
    535,621.82x = 803,641.80 × 235,891.76
  4. Step 4: Simplify right side
    535,621.82x = 189,572,478,611.57
  5. Step 5: Solve for x
    x = 189,572,478,611.57/535,621.82
  6. Step 6: Final answer
    x = 353,929.72

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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.