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Finding the Fourth Proportional to 683,544.47, 943,286.88 and 377,640.58

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Solution

The fourth proportional to 683,544.47, 943,286.88 and 377,640.58 is: 521,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,544.47 : 943,286.88 = 377,640.58 : x
  2. Step 2: Convert to fraction form
    683,544.47/943,286.88 = 377,640.58/x
  3. Step 3: Cross multiply
    683,544.47x = 943,286.88 × 377,640.58
  4. Step 4: Simplify right side
    683,544.47x = 356,223,402,111.37
  5. Step 5: Solve for x
    x = 356,223,402,111.37/683,544.47
  6. Step 6: Final answer
    x = 521,141.52

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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.