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Finding the Fourth Proportional to 472,309.60, 651,776.88 and 257,441.44

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Solution

The fourth proportional to 472,309.60, 651,776.88 and 257,441.44 is: 355,263.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,309.60 : 651,776.88 = 257,441.44 : x
  2. Step 2: Convert to fraction form
    472,309.60/651,776.88 = 257,441.44/x
  3. Step 3: Cross multiply
    472,309.60x = 651,776.88 × 257,441.44
  4. Step 4: Simplify right side
    472,309.60x = 167,794,378,545.91
  5. Step 5: Solve for x
    x = 167,794,378,545.91/472,309.60
  6. Step 6: Final answer
    x = 355,263.54

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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.