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Finding the Fourth Proportional to 314,813.99, 434,444.78 and 178,855.39

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Solution

The fourth proportional to 314,813.99, 434,444.78 and 178,855.39 is: 246,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,813.99 : 434,444.78 = 178,855.39 : x
  2. Step 2: Convert to fraction form
    314,813.99/434,444.78 = 178,855.39/x
  3. Step 3: Cross multiply
    314,813.99x = 434,444.78 × 178,855.39
  4. Step 4: Simplify right side
    314,813.99x = 77,702,791,550.56
  5. Step 5: Solve for x
    x = 77,702,791,550.56/314,813.99
  6. Step 6: Final answer
    x = 246,821.28

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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.