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Finding the Fourth Proportional to 493,469.20, 740,203.80 and 316,322.20

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Solution

The fourth proportional to 493,469.20, 740,203.80 and 316,322.20 is: 474,483.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,469.20 : 740,203.80 = 316,322.20 : x
  2. Step 2: Convert to fraction form
    493,469.20/740,203.80 = 316,322.20/x
  3. Step 3: Cross multiply
    493,469.20x = 740,203.80 × 316,322.20
  4. Step 4: Simplify right side
    493,469.20x = 234,142,894,464.36
  5. Step 5: Solve for x
    x = 234,142,894,464.36/493,469.20
  6. Step 6: Final answer
    x = 474,483.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.