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Finding the Fourth Proportional to 604,890.46, 906,725.76 and 380,411.29

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Solution

The fourth proportional to 604,890.46, 906,725.76 and 380,411.29 is: 570,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,890.46 : 906,725.76 = 380,411.29 : x
  2. Step 2: Convert to fraction form
    604,890.46/906,725.76 = 380,411.29/x
  3. Step 3: Cross multiply
    604,890.46x = 906,725.76 × 380,411.29
  4. Step 4: Simplify right side
    604,890.46x = 344,928,716,037.83
  5. Step 5: Solve for x
    x = 344,928,716,037.83/604,890.46
  6. Step 6: Final answer
    x = 570,233.35

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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.