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Finding the Fourth Proportional to 916,692.41, 1,265,026 and 508,797.81

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Solution

The fourth proportional to 916,692.41, 1,265,026 and 508,797.81 is: 702,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,692.41 : 1,265,026 = 508,797.81 : x
  2. Step 2: Convert to fraction form
    916,692.41/1,265,026 = 508,797.81/x
  3. Step 3: Cross multiply
    916,692.41x = 1,265,026 × 508,797.81
  4. Step 4: Simplify right side
    916,692.41x = 643,642,458,393.06
  5. Step 5: Solve for x
    x = 643,642,458,393.06/916,692.41
  6. Step 6: Final answer
    x = 702,135.69

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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.