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Finding the Fourth Proportional to 626,191.68, 864,139.68 and 339,710.88

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Solution

The fourth proportional to 626,191.68, 864,139.68 and 339,710.88 is: 468,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,191.68 : 864,139.68 = 339,710.88 : x
  2. Step 2: Convert to fraction form
    626,191.68/864,139.68 = 339,710.88/x
  3. Step 3: Cross multiply
    626,191.68x = 864,139.68 × 339,710.88
  4. Step 4: Simplify right side
    626,191.68x = 293,557,651,135.72
  5. Step 5: Solve for x
    x = 293,557,651,135.72/626,191.68
  6. Step 6: Final answer
    x = 468,798.39

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1.5x scale

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.