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Finding the Fourth Proportional to 437,190.78, 603,314.19 and 243,597.71

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Solution

The fourth proportional to 437,190.78, 603,314.19 and 243,597.71 is: 336,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,190.78 : 603,314.19 = 243,597.71 : x
  2. Step 2: Convert to fraction form
    437,190.78/603,314.19 = 243,597.71/x
  3. Step 3: Cross multiply
    437,190.78x = 603,314.19 × 243,597.71
  4. Step 4: Simplify right side
    437,190.78x = 146,965,957,752.95
  5. Step 5: Solve for x
    x = 146,965,957,752.95/437,190.78
  6. Step 6: Final answer
    x = 336,159.78

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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.