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Finding the Fourth Proportional to 585,263.85, 807,729.66 and 330,631.44

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Solution

The fourth proportional to 585,263.85, 807,729.66 and 330,631.44 is: 456,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,263.85 : 807,729.66 = 330,631.44 : x
  2. Step 2: Convert to fraction form
    585,263.85/807,729.66 = 330,631.44/x
  3. Step 3: Cross multiply
    585,263.85x = 807,729.66 × 330,631.44
  4. Step 4: Simplify right side
    585,263.85x = 267,060,820,616.51
  5. Step 5: Solve for x
    x = 267,060,820,616.51/585,263.85
  6. Step 6: Final answer
    x = 456,308.42

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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.