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Finding the Fourth Proportional to 661,179.36, 912,408.36 and 374,725.92

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Solution

The fourth proportional to 661,179.36, 912,408.36 and 374,725.92 is: 517,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,179.36 : 912,408.36 = 374,725.92 : x
  2. Step 2: Convert to fraction form
    661,179.36/912,408.36 = 374,725.92/x
  3. Step 3: Cross multiply
    661,179.36x = 912,408.36 × 374,725.92
  4. Step 4: Simplify right side
    661,179.36x = 341,903,062,116.69
  5. Step 5: Solve for x
    x = 341,903,062,116.69/661,179.36
  6. Step 6: Final answer
    x = 517,110.91

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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.