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Finding the Fourth Proportional to 617,361.39, 930,669.32 and 576,211.63

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Solution

The fourth proportional to 617,361.39, 930,669.32 and 576,211.63 is: 868,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,361.39 : 930,669.32 = 576,211.63 : x
  2. Step 2: Convert to fraction form
    617,361.39/930,669.32 = 576,211.63/x
  3. Step 3: Cross multiply
    617,361.39x = 930,669.32 × 576,211.63
  4. Step 4: Simplify right side
    617,361.39x = 536,262,485,868.19
  5. Step 5: Solve for x
    x = 536,262,485,868.19/617,361.39
  6. Step 6: Final answer
    x = 868,636.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.