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Finding the Fourth Proportional to 353,103.65, 487,277.29 and 191,962.72

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Solution

The fourth proportional to 353,103.65, 487,277.29 and 191,962.72 is: 264,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,103.65 : 487,277.29 = 191,962.72 : x
  2. Step 2: Convert to fraction form
    353,103.65/487,277.29 = 191,962.72/x
  3. Step 3: Cross multiply
    353,103.65x = 487,277.29 × 191,962.72
  4. Step 4: Simplify right side
    353,103.65x = 93,539,072,284.53
  5. Step 5: Solve for x
    x = 93,539,072,284.53/353,103.65
  6. Step 6: Final answer
    x = 264,905.43

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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.