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Finding the Fourth Proportional to 1,359,784.22, 1,876,462.58 and 747,936.81

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Solution

The fourth proportional to 1,359,784.22, 1,876,462.58 and 747,936.81 is: 1,032,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,784.22 : 1,876,462.58 = 747,936.81 : x
  2. Step 2: Convert to fraction form
    1,359,784.22/1,876,462.58 = 747,936.81/x
  3. Step 3: Cross multiply
    1,359,784.22x = 1,876,462.58 × 747,936.81
  4. Step 4: Simplify right side
    1,359,784.22x = 1,403,475,438,039.41
  5. Step 5: Solve for x
    x = 1,403,475,438,039.41/1,359,784.22
  6. Step 6: Final answer
    x = 1,032,131.00

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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.