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Finding the Fourth Proportional to 303,495.90, 418,740.50 and 174,427.68

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Solution

The fourth proportional to 303,495.90, 418,740.50 and 174,427.68 is: 240,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,495.90 : 418,740.50 = 174,427.68 : x
  2. Step 2: Convert to fraction form
    303,495.90/418,740.50 = 174,427.68/x
  3. Step 3: Cross multiply
    303,495.90x = 418,740.50 × 174,427.68
  4. Step 4: Simplify right side
    303,495.90x = 73,039,933,937.04
  5. Step 5: Solve for x
    x = 73,039,933,937.04/303,495.90
  6. Step 6: Final answer
    x = 240,662.01

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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.