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Finding the Fourth Proportional to 353,996.40, 488,513.10 and 192,851.05

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Solution

The fourth proportional to 353,996.40, 488,513.10 and 192,851.05 is: 266,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,996.40 : 488,513.10 = 192,851.05 : x
  2. Step 2: Convert to fraction form
    353,996.40/488,513.10 = 192,851.05/x
  3. Step 3: Cross multiply
    353,996.40x = 488,513.10 × 192,851.05
  4. Step 4: Simplify right side
    353,996.40x = 94,210,264,273.76
  5. Step 5: Solve for x
    x = 94,210,264,273.76/353,996.40
  6. Step 6: Final answer
    x = 266,133.40

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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.