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Finding the Fourth Proportional to 1,784,963.88, 2,677,970.68 and 719,457.48

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Solution

The fourth proportional to 1,784,963.88, 2,677,970.68 and 719,457.48 is: 1,079,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,963.88 : 2,677,970.68 = 719,457.48 : x
  2. Step 2: Convert to fraction form
    1,784,963.88/2,677,970.68 = 719,457.48/x
  3. Step 3: Cross multiply
    1,784,963.88x = 2,677,970.68 × 719,457.48
  4. Step 4: Simplify right side
    1,784,963.88x = 1,926,686,036,946.69
  5. Step 5: Solve for x
    x = 1,926,686,036,946.69/1,784,963.88
  6. Step 6: Final answer
    x = 1,079,397.77

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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.