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Finding the Fourth Proportional to 403,979.60, 566,621.20 and 403,979.60

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Solution

The fourth proportional to 403,979.60, 566,621.20 and 403,979.60 is: 566,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,979.60 : 566,621.20 = 403,979.60 : x
  2. Step 2: Convert to fraction form
    403,979.60/566,621.20 = 403,979.60/x
  3. Step 3: Cross multiply
    403,979.60x = 566,621.20 × 403,979.60
  4. Step 4: Simplify right side
    403,979.60x = 228,903,405,727.52
  5. Step 5: Solve for x
    x = 228,903,405,727.52/403,979.60
  6. Step 6: Final answer
    x = 566,621.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.