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Finding the Fourth Proportional to 472,012.30, 651,375.03 and 257,151.70

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Solution

The fourth proportional to 472,012.30, 651,375.03 and 257,151.70 is: 354,868.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,012.30 : 651,375.03 = 257,151.70 : x
  2. Step 2: Convert to fraction form
    472,012.30/651,375.03 = 257,151.70/x
  3. Step 3: Cross multiply
    472,012.30x = 651,375.03 × 257,151.70
  4. Step 4: Simplify right side
    472,012.30x = 167,502,196,302.05
  5. Step 5: Solve for x
    x = 167,502,196,302.05/472,012.30
  6. Step 6: Final answer
    x = 354,868.29

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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.