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Finding the Fourth Proportional to 472,194.15, 651,608.94 and 257,329.56

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Solution

The fourth proportional to 472,194.15, 651,608.94 and 257,329.56 is: 355,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,194.15 : 651,608.94 = 257,329.56 : x
  2. Step 2: Convert to fraction form
    472,194.15/651,608.94 = 257,329.56/x
  3. Step 3: Cross multiply
    472,194.15x = 651,608.94 × 257,329.56
  4. Step 4: Simplify right side
    472,194.15x = 167,678,241,822.27
  5. Step 5: Solve for x
    x = 167,678,241,822.27/472,194.15
  6. Step 6: Final answer
    x = 355,104.45

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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.