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Finding the Fourth Proportional to 3,152,978.63, 4,351,819.26 and 2,064,618.08

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Solution

The fourth proportional to 3,152,978.63, 4,351,819.26 and 2,064,618.08 is: 2,849,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152,978.63 : 4,351,819.26 = 2,064,618.08 : x
  2. Step 2: Convert to fraction form
    3,152,978.63/4,351,819.26 = 2,064,618.08/x
  3. Step 3: Cross multiply
    3,152,978.63x = 4,351,819.26 × 2,064,618.08
  4. Step 4: Simplify right side
    3,152,978.63x = 8,984,844,703,329.12
  5. Step 5: Solve for x
    x = 8,984,844,703,329.12/3,152,978.63
  6. Step 6: Final answer
    x = 2,849,637.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.