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Finding the Fourth Proportional to 671,409.38, 926,544.94 and 369,603.38

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Solution

The fourth proportional to 671,409.38, 926,544.94 and 369,603.38 is: 510,052.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,409.38 : 926,544.94 = 369,603.38 : x
  2. Step 2: Convert to fraction form
    671,409.38/926,544.94 = 369,603.38/x
  3. Step 3: Cross multiply
    671,409.38x = 926,544.94 × 369,603.38
  4. Step 4: Simplify right side
    671,409.38x = 342,454,135,989.16
  5. Step 5: Solve for x
    x = 342,454,135,989.16/671,409.38
  6. Step 6: Final answer
    x = 510,052.66

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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.