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Finding the Fourth Proportional to 666,383.04, 919,605.84 and 360,459.60

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Solution

The fourth proportional to 666,383.04, 919,605.84 and 360,459.60 is: 497,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,383.04 : 919,605.84 = 360,459.60 : x
  2. Step 2: Convert to fraction form
    666,383.04/919,605.84 = 360,459.60/x
  3. Step 3: Cross multiply
    666,383.04x = 919,605.84 × 360,459.60
  4. Step 4: Simplify right side
    666,383.04x = 331,480,753,244.06
  5. Step 5: Solve for x
    x = 331,480,753,244.06/666,383.04
  6. Step 6: Final answer
    x = 497,432.76

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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.