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Finding the Fourth Proportional to 3,611,707.88, 4,984,024.61 and 1,980,079.47

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Solution

The fourth proportional to 3,611,707.88, 4,984,024.61 and 1,980,079.47 is: 2,732,437.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611,707.88 : 4,984,024.61 = 1,980,079.47 : x
  2. Step 2: Convert to fraction form
    3,611,707.88/4,984,024.61 = 1,980,079.47/x
  3. Step 3: Cross multiply
    3,611,707.88x = 4,984,024.61 × 1,980,079.47
  4. Step 4: Simplify right side
    3,611,707.88x = 9,868,764,808,235.76
  5. Step 5: Solve for x
    x = 9,868,764,808,235.76/3,611,707.88
  6. Step 6: Final answer
    x = 2,732,437.16

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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.