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Finding the Fourth Proportional to 2,855,784.57, 4,279,649.13 and 1,576,967.76

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Solution

The fourth proportional to 2,855,784.57, 4,279,649.13 and 1,576,967.76 is: 2,363,227.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855,784.57 : 4,279,649.13 = 1,576,967.76 : x
  2. Step 2: Convert to fraction form
    2,855,784.57/4,279,649.13 = 1,576,967.76/x
  3. Step 3: Cross multiply
    2,855,784.57x = 4,279,649.13 × 1,576,967.76
  4. Step 4: Simplify right side
    2,855,784.57x = 6,748,868,702,122.05
  5. Step 5: Solve for x
    x = 6,748,868,702,122.05/2,855,784.57
  6. Step 6: Final answer
    x = 2,363,227.53

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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.