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Finding the Fourth Proportional to 2,955,978.42, 4,080,623.44 and 1,732,114.08

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Solution

The fourth proportional to 2,955,978.42, 4,080,623.44 and 1,732,114.08 is: 2,391,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955,978.42 : 4,080,623.44 = 1,732,114.08 : x
  2. Step 2: Convert to fraction form
    2,955,978.42/4,080,623.44 = 1,732,114.08/x
  3. Step 3: Cross multiply
    2,955,978.42x = 4,080,623.44 × 1,732,114.08
  4. Step 4: Simplify right side
    2,955,978.42x = 7,068,105,315,602.04
  5. Step 5: Solve for x
    x = 7,068,105,315,602.04/2,955,978.42
  6. Step 6: Final answer
    x = 2,391,122.10

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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.