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Finding the Fourth Proportional to 585,879.12, 808,526.88 and 331,245.36

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Solution

The fourth proportional to 585,879.12, 808,526.88 and 331,245.36 is: 457,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,879.12 : 808,526.88 = 331,245.36 : x
  2. Step 2: Convert to fraction form
    585,879.12/808,526.88 = 331,245.36/x
  3. Step 3: Cross multiply
    585,879.12x = 808,526.88 × 331,245.36
  4. Step 4: Simplify right side
    585,879.12x = 267,820,777,435.28
  5. Step 5: Solve for x
    x = 267,820,777,435.28/585,879.12
  6. Step 6: Final answer
    x = 457,126.34

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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.