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Finding the Fourth Proportional to 462,967.94, 639,114.20 and 348,290.36

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Solution

The fourth proportional to 462,967.94, 639,114.20 and 348,290.36 is: 480,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,967.94 : 639,114.20 = 348,290.36 : x
  2. Step 2: Convert to fraction form
    462,967.94/639,114.20 = 348,290.36/x
  3. Step 3: Cross multiply
    462,967.94x = 639,114.20 × 348,290.36
  4. Step 4: Simplify right side
    462,967.94x = 222,597,313,564.86
  5. Step 5: Solve for x
    x = 222,597,313,564.86/462,967.94
  6. Step 6: Final answer
    x = 480,805.03

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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.