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Finding the Fourth Proportional to 278,661.92, 384,712.86 and 183,445.41

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Solution

The fourth proportional to 278,661.92, 384,712.86 and 183,445.41 is: 253,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,661.92 : 384,712.86 = 183,445.41 : x
  2. Step 2: Convert to fraction form
    278,661.92/384,712.86 = 183,445.41/x
  3. Step 3: Cross multiply
    278,661.92x = 384,712.86 × 183,445.41
  4. Step 4: Simplify right side
    278,661.92x = 70,573,807,417.75
  5. Step 5: Solve for x
    x = 70,573,807,417.75/278,661.92
  6. Step 6: Final answer
    x = 253,259.60

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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.