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Finding the Fourth Proportional to 455,505.15, 683,257.73 and 366,931.65

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Solution

The fourth proportional to 455,505.15, 683,257.73 and 366,931.65 is: 550,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,505.15 : 683,257.73 = 366,931.65 : x
  2. Step 2: Convert to fraction form
    455,505.15/683,257.73 = 366,931.65/x
  3. Step 3: Cross multiply
    455,505.15x = 683,257.73 × 366,931.65
  4. Step 4: Simplify right side
    455,505.15x = 250,708,886,244.16
  5. Step 5: Solve for x
    x = 250,708,886,244.16/455,505.15
  6. Step 6: Final answer
    x = 550,397.48

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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.