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Finding the Fourth Proportional to 1,904,762.79, 2,628,604.71 and 1,045,403.01

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Solution

The fourth proportional to 1,904,762.79, 2,628,604.71 and 1,045,403.01 is: 1,442,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904,762.79 : 2,628,604.71 = 1,045,403.01 : x
  2. Step 2: Convert to fraction form
    1,904,762.79/2,628,604.71 = 1,045,403.01/x
  3. Step 3: Cross multiply
    1,904,762.79x = 2,628,604.71 × 1,045,403.01
  4. Step 4: Simplify right side
    1,904,762.79x = 2,747,951,275,934.18
  5. Step 5: Solve for x
    x = 2,747,951,275,934.18/1,904,762.79
  6. Step 6: Final answer
    x = 1,442,673.75

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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.