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Finding the Fourth Proportional to 354,011.42, 488,534.29 and 192,865.97

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Solution

The fourth proportional to 354,011.42, 488,534.29 and 192,865.97 is: 266,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,011.42 : 488,534.29 = 192,865.97 : x
  2. Step 2: Convert to fraction form
    354,011.42/488,534.29 = 192,865.97/x
  3. Step 3: Cross multiply
    354,011.42x = 488,534.29 × 192,865.97
  4. Step 4: Simplify right side
    354,011.42x = 94,221,636,312.11
  5. Step 5: Solve for x
    x = 94,221,636,312.11/354,011.42
  6. Step 6: Final answer
    x = 266,154.23

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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.