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Finding the Fourth Proportional to 2,766,898.60, 4,150,347.90 and 1,698,476.20

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Solution

The fourth proportional to 2,766,898.60, 4,150,347.90 and 1,698,476.20 is: 2,547,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766,898.60 : 4,150,347.90 = 1,698,476.20 : x
  2. Step 2: Convert to fraction form
    2,766,898.60/4,150,347.90 = 1,698,476.20/x
  3. Step 3: Cross multiply
    2,766,898.60x = 4,150,347.90 × 1,698,476.20
  4. Step 4: Simplify right side
    2,766,898.60x = 7,049,267,129,869.98
  5. Step 5: Solve for x
    x = 7,049,267,129,869.98/2,766,898.60
  6. Step 6: Final answer
    x = 2,547,714.30

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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.