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Finding the Fourth Proportional to 666,444.24, 919,693.98 and 364,638.24

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Solution

The fourth proportional to 666,444.24, 919,693.98 and 364,638.24 is: 503,201.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,444.24 : 919,693.98 = 364,638.24 : x
  2. Step 2: Convert to fraction form
    666,444.24/919,693.98 = 364,638.24/x
  3. Step 3: Cross multiply
    666,444.24x = 919,693.98 × 364,638.24
  4. Step 4: Simplify right side
    666,444.24x = 335,355,594,205.80
  5. Step 5: Solve for x
    x = 335,355,594,205.80/666,444.24
  6. Step 6: Final answer
    x = 503,201.28

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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.