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Finding the Fourth Proportional to 571,392.25, 788,516.94 and 313,266.12

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Solution

The fourth proportional to 571,392.25, 788,516.94 and 313,266.12 is: 432,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,392.25 : 788,516.94 = 313,266.12 : x
  2. Step 2: Convert to fraction form
    571,392.25/788,516.94 = 313,266.12/x
  3. Step 3: Cross multiply
    571,392.25x = 788,516.94 × 313,266.12
  4. Step 4: Simplify right side
    571,392.25x = 247,015,642,348.07
  5. Step 5: Solve for x
    x = 247,015,642,348.07/571,392.25
  6. Step 6: Final answer
    x = 432,304.85

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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.