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Finding the Fourth Proportional to 469,907.12, 648,472.54 and 255,047.26

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Solution

The fourth proportional to 469,907.12, 648,472.54 and 255,047.26 is: 351,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,907.12 : 648,472.54 = 255,047.26 : x
  2. Step 2: Convert to fraction form
    469,907.12/648,472.54 = 255,047.26/x
  3. Step 3: Cross multiply
    469,907.12x = 648,472.54 × 255,047.26
  4. Step 4: Simplify right side
    469,907.12x = 165,391,144,512.24
  5. Step 5: Solve for x
    x = 165,391,144,512.24/469,907.12
  6. Step 6: Final answer
    x = 351,965.61

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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.