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Finding the Fourth Proportional to 472,279.01, 651,745.44 and 257,414.76

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Solution

The fourth proportional to 472,279.01, 651,745.44 and 257,414.76 is: 355,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,279.01 : 651,745.44 = 257,414.76 : x
  2. Step 2: Convert to fraction form
    472,279.01/651,745.44 = 257,414.76/x
  3. Step 3: Cross multiply
    472,279.01x = 651,745.44 × 257,414.76
  4. Step 4: Simplify right side
    472,279.01x = 167,768,896,018.69
  5. Step 5: Solve for x
    x = 167,768,896,018.69/472,279.01
  6. Step 6: Final answer
    x = 355,232.59

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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.