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Finding the Fourth Proportional to 358,011.59, 494,068.67 and 196,878.89

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Solution

The fourth proportional to 358,011.59, 494,068.67 and 196,878.89 is: 271,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,011.59 : 494,068.67 = 196,878.89 : x
  2. Step 2: Convert to fraction form
    358,011.59/494,068.67 = 196,878.89/x
  3. Step 3: Cross multiply
    358,011.59x = 494,068.67 × 196,878.89
  4. Step 4: Simplify right side
    358,011.59x = 97,271,693,060.75
  5. Step 5: Solve for x
    x = 97,271,693,060.75/358,011.59
  6. Step 6: Final answer
    x = 271,699.85

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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.