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Finding the Fourth Proportional to 472,315.24, 651,813.24 and 257,467.60

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Solution

The fourth proportional to 472,315.24, 651,813.24 and 257,467.60 is: 355,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,315.24 : 651,813.24 = 257,467.60 : x
  2. Step 2: Convert to fraction form
    472,315.24/651,813.24 = 257,467.60/x
  3. Step 3: Cross multiply
    472,315.24x = 651,813.24 × 257,467.60
  4. Step 4: Simplify right side
    472,315.24x = 167,820,790,551.02
  5. Step 5: Solve for x
    x = 167,820,790,551.02/472,315.24
  6. Step 6: Final answer
    x = 355,315.21

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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.