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Finding the Fourth Proportional to 354,199.10, 488,790.45 and 193,053.65

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Solution

The fourth proportional to 354,199.10, 488,790.45 and 193,053.65 is: 266,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,199.10 : 488,790.45 = 193,053.65 : x
  2. Step 2: Convert to fraction form
    354,199.10/488,790.45 = 193,053.65/x
  3. Step 3: Cross multiply
    354,199.10x = 488,790.45 × 193,053.65
  4. Step 4: Simplify right side
    354,199.10x = 94,362,778,013.69
  5. Step 5: Solve for x
    x = 94,362,778,013.69/354,199.10
  6. Step 6: Final answer
    x = 266,411.69

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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.