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Finding the Fourth Proportional to 666,339.96, 919,570.80 and 364,533.96

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Solution

The fourth proportional to 666,339.96, 919,570.80 and 364,533.96 is: 503,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,339.96 : 919,570.80 = 364,533.96 : x
  2. Step 2: Convert to fraction form
    666,339.96/919,570.80 = 364,533.96/x
  3. Step 3: Cross multiply
    666,339.96x = 919,570.80 × 364,533.96
  4. Step 4: Simplify right side
    666,339.96x = 335,214,785,224.37
  5. Step 5: Solve for x
    x = 335,214,785,224.37/666,339.96
  6. Step 6: Final answer
    x = 503,068.71

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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.