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Finding the Fourth Proportional to 647,569.68, 971,351.28 and 174,216.48

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Solution

The fourth proportional to 647,569.68, 971,351.28 and 174,216.48 is: 261,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,569.68 : 971,351.28 = 174,216.48 : x
  2. Step 2: Convert to fraction form
    647,569.68/971,351.28 = 174,216.48/x
  3. Step 3: Cross multiply
    647,569.68x = 971,351.28 × 174,216.48
  4. Step 4: Simplify right side
    647,569.68x = 169,225,400,845.09
  5. Step 5: Solve for x
    x = 169,225,400,845.09/647,569.68
  6. Step 6: Final answer
    x = 261,323.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.