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Finding the Fourth Proportional to 439,090.16, 606,043.80 and 248,214.32

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Solution

The fourth proportional to 439,090.16, 606,043.80 and 248,214.32 is: 342,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,090.16 : 606,043.80 = 248,214.32 : x
  2. Step 2: Convert to fraction form
    439,090.16/606,043.80 = 248,214.32/x
  3. Step 3: Cross multiply
    439,090.16x = 606,043.80 × 248,214.32
  4. Step 4: Simplify right side
    439,090.16x = 150,428,749,707.22
  5. Step 5: Solve for x
    x = 150,428,749,707.22/439,090.16
  6. Step 6: Final answer
    x = 342,591.94

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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.