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Finding the Fourth Proportional to 278,853.60, 417,819.60 and 237,381.60

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Solution

The fourth proportional to 278,853.60, 417,819.60 and 237,381.60 is: 355,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,853.60 : 417,819.60 = 237,381.60 : x
  2. Step 2: Convert to fraction form
    278,853.60/417,819.60 = 237,381.60/x
  3. Step 3: Cross multiply
    278,853.60x = 417,819.60 × 237,381.60
  4. Step 4: Simplify right side
    278,853.60x = 99,182,685,159.36
  5. Step 5: Solve for x
    x = 99,182,685,159.36/278,853.60
  6. Step 6: Final answer
    x = 355,680.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.