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Finding the Fourth Proportional to 489,508.32, 733,930.20 and 249,031.20

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Solution

The fourth proportional to 489,508.32, 733,930.20 and 249,031.20 is: 373,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,508.32 : 733,930.20 = 249,031.20 : x
  2. Step 2: Convert to fraction form
    489,508.32/733,930.20 = 249,031.20/x
  3. Step 3: Cross multiply
    489,508.32x = 733,930.20 × 249,031.20
  4. Step 4: Simplify right side
    489,508.32x = 182,771,518,422.24
  5. Step 5: Solve for x
    x = 182,771,518,422.24/489,508.32
  6. Step 6: Final answer
    x = 373,377.76

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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.