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Finding the Fourth Proportional to 472,453.60, 651,989.09 and 257,597.26

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Solution

The fourth proportional to 472,453.60, 651,989.09 and 257,597.26 is: 355,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,453.60 : 651,989.09 = 257,597.26 : x
  2. Step 2: Convert to fraction form
    472,453.60/651,989.09 = 257,597.26/x
  3. Step 3: Cross multiply
    472,453.60x = 651,989.09 × 257,597.26
  4. Step 4: Simplify right side
    472,453.60x = 167,950,603,133.89
  5. Step 5: Solve for x
    x = 167,950,603,133.89/472,453.60
  6. Step 6: Final answer
    x = 355,485.92

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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.