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Finding the Fourth Proportional to 469,199.04, 647,794.08 and 308,339.52

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Solution

The fourth proportional to 469,199.04, 647,794.08 and 308,339.52 is: 425,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,199.04 : 647,794.08 = 308,339.52 : x
  2. Step 2: Convert to fraction form
    469,199.04/647,794.08 = 308,339.52/x
  3. Step 3: Cross multiply
    469,199.04x = 647,794.08 × 308,339.52
  4. Step 4: Simplify right side
    469,199.04x = 199,740,515,686.04
  5. Step 5: Solve for x
    x = 199,740,515,686.04/469,199.04
  6. Step 6: Final answer
    x = 425,705.29

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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.