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Finding the Fourth Proportional to 389,340.60, 584,010.90 and 264,924.60

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Solution

The fourth proportional to 389,340.60, 584,010.90 and 264,924.60 is: 397,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,340.60 : 584,010.90 = 264,924.60 : x
  2. Step 2: Convert to fraction form
    389,340.60/584,010.90 = 264,924.60/x
  3. Step 3: Cross multiply
    389,340.60x = 584,010.90 × 264,924.60
  4. Step 4: Simplify right side
    389,340.60x = 154,718,854,078.14
  5. Step 5: Solve for x
    x = 154,718,854,078.14/389,340.60
  6. Step 6: Final answer
    x = 397,386.90

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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.