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Finding the Fourth Proportional to 434,279.50, 599,291.21 and 240,678.97

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Solution

The fourth proportional to 434,279.50, 599,291.21 and 240,678.97 is: 332,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,279.50 : 599,291.21 = 240,678.97 : x
  2. Step 2: Convert to fraction form
    434,279.50/599,291.21 = 240,678.97/x
  3. Step 3: Cross multiply
    434,279.50x = 599,291.21 × 240,678.97
  4. Step 4: Simplify right side
    434,279.50x = 144,236,790,256.32
  5. Step 5: Solve for x
    x = 144,236,790,256.32/434,279.50
  6. Step 6: Final answer
    x = 332,128.94

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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.