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Finding the Fourth Proportional to 561,373.32, 842,269.50 and 336,894.78

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Solution

The fourth proportional to 561,373.32, 842,269.50 and 336,894.78 is: 505,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,373.32 : 842,269.50 = 336,894.78 : x
  2. Step 2: Convert to fraction form
    561,373.32/842,269.50 = 336,894.78/x
  3. Step 3: Cross multiply
    561,373.32x = 842,269.50 × 336,894.78
  4. Step 4: Simplify right side
    561,373.32x = 283,756,197,903.21
  5. Step 5: Solve for x
    x = 283,756,197,903.21/561,373.32
  6. Step 6: Final answer
    x = 505,467.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.