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Finding the Fourth Proportional to 571,689.50, 788,932.63 and 313,568.54

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Solution

The fourth proportional to 571,689.50, 788,932.63 and 313,568.54 is: 432,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,689.50 : 788,932.63 = 313,568.54 : x
  2. Step 2: Convert to fraction form
    571,689.50/788,932.63 = 313,568.54/x
  3. Step 3: Cross multiply
    571,689.50x = 788,932.63 × 313,568.54
  4. Step 4: Simplify right side
    571,689.50x = 247,384,452,353.26
  5. Step 5: Solve for x
    x = 247,384,452,353.26/571,689.50
  6. Step 6: Final answer
    x = 432,725.20

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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.