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Finding the Fourth Proportional to 871,796.94, 1,202,641.02 and 756,919.32

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Solution

The fourth proportional to 871,796.94, 1,202,641.02 and 756,919.32 is: 1,044,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,796.94 : 1,202,641.02 = 756,919.32 : x
  2. Step 2: Convert to fraction form
    871,796.94/1,202,641.02 = 756,919.32/x
  3. Step 3: Cross multiply
    871,796.94x = 1,202,641.02 × 756,919.32
  4. Step 4: Simplify right side
    871,796.94x = 910,302,223,062.51
  5. Step 5: Solve for x
    x = 910,302,223,062.51/871,796.94
  6. Step 6: Final answer
    x = 1,044,167.72

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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.