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Finding the Fourth Proportional to 626,255.40, 864,232.53 and 339,775.53

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Solution

The fourth proportional to 626,255.40, 864,232.53 and 339,775.53 is: 468,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,255.40 : 864,232.53 = 339,775.53 : x
  2. Step 2: Convert to fraction form
    626,255.40/864,232.53 = 339,775.53/x
  3. Step 3: Cross multiply
    626,255.40x = 864,232.53 × 339,775.53
  4. Step 4: Simplify right side
    626,255.40x = 293,645,065,923.99
  5. Step 5: Solve for x
    x = 293,645,065,923.99/626,255.40
  6. Step 6: Final answer
    x = 468,890.27

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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.