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Finding the Fourth Proportional to 358,070.50, 494,149.71 and 196,937.74

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Solution

The fourth proportional to 358,070.50, 494,149.71 and 196,937.74 is: 271,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,070.50 : 494,149.71 = 196,937.74 : x
  2. Step 2: Convert to fraction form
    358,070.50/494,149.71 = 196,937.74/x
  3. Step 3: Cross multiply
    358,070.50x = 494,149.71 × 196,937.74
  4. Step 4: Simplify right side
    358,070.50x = 97,316,727,109.06
  5. Step 5: Solve for x
    x = 97,316,727,109.06/358,070.50
  6. Step 6: Final answer
    x = 271,780.91

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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.