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Finding the Fourth Proportional to 307,368.35, 424,170.16 and 171,410.88

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Solution

The fourth proportional to 307,368.35, 424,170.16 and 171,410.88 is: 236,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,368.35 : 424,170.16 = 171,410.88 : x
  2. Step 2: Convert to fraction form
    307,368.35/424,170.16 = 171,410.88/x
  3. Step 3: Cross multiply
    307,368.35x = 424,170.16 × 171,410.88
  4. Step 4: Simplify right side
    307,368.35x = 72,707,379,966.81
  5. Step 5: Solve for x
    x = 72,707,379,966.81/307,368.35
  6. Step 6: Final answer
    x = 236,548.04

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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.