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Finding the Fourth Proportional to 626,692.43, 864,744.31 and 358,368.59

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Solution

The fourth proportional to 626,692.43, 864,744.31 and 358,368.59 is: 494,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,692.43 : 864,744.31 = 358,368.59 : x
  2. Step 2: Convert to fraction form
    626,692.43/864,744.31 = 358,368.59/x
  3. Step 3: Cross multiply
    626,692.43x = 864,744.31 × 358,368.59
  4. Step 4: Simplify right side
    626,692.43x = 309,897,199,085.22
  5. Step 5: Solve for x
    x = 309,897,199,085.22/626,692.43
  6. Step 6: Final answer
    x = 494,496.48

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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.