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Finding the Fourth Proportional to 626,240.11, 939,363 and 266,318.23

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Solution

The fourth proportional to 626,240.11, 939,363 and 266,318.23 is: 399,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,240.11 : 939,363 = 266,318.23 : x
  2. Step 2: Convert to fraction form
    626,240.11/939,363 = 266,318.23/x
  3. Step 3: Cross multiply
    626,240.11x = 939,363 × 266,318.23
  4. Step 4: Simplify right side
    626,240.11x = 250,169,491,487.49
  5. Step 5: Solve for x
    x = 250,169,491,487.49/626,240.11
  6. Step 6: Final answer
    x = 399,478.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.