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Finding the Fourth Proportional to 1,929,865.76, 2,894,714.88 and 650,388.80

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Solution

The fourth proportional to 1,929,865.76, 2,894,714.88 and 650,388.80 is: 975,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,865.76 : 2,894,714.88 = 650,388.80 : x
  2. Step 2: Convert to fraction form
    1,929,865.76/2,894,714.88 = 650,388.80/x
  3. Step 3: Cross multiply
    1,929,865.76x = 2,894,714.88 × 650,388.80
  4. Step 4: Simplify right side
    1,929,865.76x = 1,882,690,137,145.34
  5. Step 5: Solve for x
    x = 1,882,690,137,145.34/1,929,865.76
  6. Step 6: Final answer
    x = 975,554.97

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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.