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Finding the Fourth Proportional to 354,011.66, 488,534.63 and 192,866.21

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Solution

The fourth proportional to 354,011.66, 488,534.63 and 192,866.21 is: 266,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,011.66 : 488,534.63 = 192,866.21 : x
  2. Step 2: Convert to fraction form
    354,011.66/488,534.63 = 192,866.21/x
  3. Step 3: Cross multiply
    354,011.66x = 488,534.63 × 192,866.21
  4. Step 4: Simplify right side
    354,011.66x = 94,221,824,245.35
  5. Step 5: Solve for x
    x = 94,221,824,245.35/354,011.66
  6. Step 6: Final answer
    x = 266,154.58

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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.